Search results for "Circumference"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
74	Adil Kodian, Anthony Sack, Wayne D. Grover	p-Cycle Network Design with Hop Limits and Circumference Limits.	BROADNETS	2004	DBLP DOI BibTeX RDF
67	Elkin Vumar	On the Circumference of 3-Connected Quasi-Claw-Free Graphs.	Graphs Comb.	2006	DBLP DOI BibTeX RDF	Circumference, Quasi-claw-free graphs, Claw-free graphs
46	Douglas Bauer, Hajo Broersma, Edward F. Schmeichel	Toughness in Graphs - A Survey.	Graphs Comb.	2006	DBLP DOI BibTeX RDF	Toughness, t-tough graph, Traceable graph, Circumference, k-factor, Triangle-free graph, Computational complexity, Factor, Planar graph, Chordal graph, Hamiltonian graph, Hamilton cycle
46	Christine W. Hanna, Abou Bakr M. Youssef	Automated measurements in obstetric ultrasound images.	ICIP (3)	1997	DBLP DOI BibTeX RDF	obstetric ultrasound images, fetal head circumference, fetal head diameter, femur length, fetal age, growth pattern, noisy ultrasound images, image measurement, morphologically-based algorithms, fetal head contour, automation algorithms, tracing methods, ultrasound machine, segmentation, Hough transforms, morphological operations, image acquisition, ultrasonic imaging, automated measurements
44	Manoel Lemos	Relations between the Circumference and e -Circumference of a Matroid.	Graphs Comb.	2008	DBLP DOI BibTeX RDF
35	Gustavo Carneiro 0001, Bogdan Georgescu, Sara Good, Dorin Comaniciu	Detection and Measurement of Fetal Anatomies from Ultrasound Images using a Constrained Probabilistic Boosting Tree.	IEEE Trans. Medical Imaging	2008	DBLP DOI BibTeX RDF
35	Yoann Dieudonné, Ouiddad Labbani-Igbida, Franck Petit	Circle formation of weak mobile robots.	ACM Trans. Auton. Adapt. Syst.	2008	DBLP DOI BibTeX RDF	formation of geometric patterns, Distributed computing, self-deployment, mobile robot networks
35	Gustavo Carneiro 0001, Bogdan Georgescu, Sara Good, Dorin Comaniciu	Automatic Fetal Measurements in Ultrasound Using Constrained Probabilistic Boosting Tree.	MICCAI (2)	2007	DBLP DOI BibTeX RDF
28	Harold N. Gabow, Shuxin Nie	Finding a long directed cycle.	ACM Trans. Algorithms	2008	DBLP DOI BibTeX RDF	circumference, long cycles, Approximation algorithms, cycles, Hamiltonian cycles
28	Tomás Kaiser, Matthias Kriesell	On the Pancyclicity of Lexicographic Products.	Graphs Comb.	2006	DBLP DOI BibTeX RDF	Lexicographic product, Circumference, k-walk, Toughness, Pancyclicity
22	Daniel Alba-Cuellar	Locating the roots of a quadratic equation in one variable through a Line-Circumference (LC) geometric construction in the plane of complex numbers.	CoRR	2024	DBLP DOI BibTeX RDF
22	Bryan V. Phillips-Farfán	Selecting, optimizing and externally validating a preexisting machine-learning regression algorithm for estimating waist circumference.	Comput. Biol. Medicine	2024	DBLP DOI BibTeX RDF
22	Yuxuan Liu, Leilei Zhang	The maximum number of complete multipartite subgraphs in graphs with given circumference or matching number.	Discret. Math.	2024	DBLP DOI BibTeX RDF
22	Manoel Lemos, James G. Oxley	An Upper Bound for the Circumference of a 3-Connected Binary Matroid.	Electron. J. Comb.	2023	DBLP DOI BibTeX RDF
22	Marcin Brianski, Gwenaël Joret, Konrad Majewski, Piotr Micek, Michal T. Seweryn, Roohani Sharma	Treedepth vs Circumference.	Comb.	2023	DBLP DOI BibTeX RDF
22	Leilei Zhang	The maximum number of cliques in graphs with prescribed order, circumference and minimum degree.	Eur. J. Comb.	2023	DBLP DOI BibTeX RDF
22	Giovanni Barbarino	On the Periodicity of Singular Vectors and the Holomorphic Block-Circulant SVD on the Unit Circumference.	CoRR	2023	DBLP DOI BibTeX RDF
22	Jinting Wang, Zhiwen Fang, Sheng Yao, Feng Yang	Ellipse guided multi-task network for fetal head circumference measurement.	Biomed. Signal Process. Control.	2023	DBLP DOI BibTeX RDF
22	Siddharth Choudhary, Ganesh Subramanian Iyer, Brandon M. Smith 0001, Jinjin Li, Mark Sippel, Antonio Criminisi, Steven B. Heymsfield	Development and validation of an accurate smartphone application for measuring waist-to-hip circumference ratio.	npj Digit. Medicine	2023	DBLP DOI BibTeX RDF
22	Mohammad Maksood Akhter, Sraban Kumar Mohanty	A fast O(NlgN) time hybrid clustering algorithm using the circumference proximity based merging technique for diversified datasets.	Eng. Appl. Artif. Intell.	2023	DBLP DOI BibTeX RDF
22	Yarong Hu, Zhenzhen Lou, Qiongxiang Huang	Ordering Q-indices of graphs: Given size and circumference.	Discret. Math.	2023	DBLP DOI BibTeX RDF
22	Vida Dujmovic, Pat Morin	Dual Circumference and Collinear Sets.	Discret. Comput. Geom.	2023	DBLP DOI BibTeX RDF
22	Niranjan Balachandran, Anish Hebbar	Cyclability, Connectivity and Circumference.	CALDAM	2023	DBLP DOI BibTeX RDF
22	Félix Chamberland, Étienne Buteau, Simon Tam 0003, Paul Fortier, Mounir Boukadoum, Alexandre Campeau-Lecours, Benoit Gosselin	EMaGer: A Wearable Full-Circumference HD-EMG Sensor and Data Augmentation Method for Robust Hand Gesture Recognition.	EMBC	2023	DBLP DOI BibTeX RDF
22	Sopark Manasnayakorn, Watchara Ruangsang, Panuwat Lertsithichai, Chatchai Sermpongpan	A Contactless Volumeter for Arm Volume and Circumference Measurement Using Depth Cameras for Early Detection of Lymphedema after Breast Cancer Surgery.	TENCON	2023	DBLP DOI BibTeX RDF
22	Haikun Zheng, Cheng Fang, Tiemin Zhang, Hongzhi Zhao, Jikang Yang, Chuang Ma	Shank length and circumference measurement algorithm of breeder chickens based on extraction of regional key points.	Comput. Electron. Agric.	2022	DBLP DOI BibTeX RDF
22	Yoshiaki Yamaguchi	Second player's cannot-lose strategy for Cylinder-Infinite-Connect-Four with circumference 11.	J. Int. Comput. Games Assoc.	2022	DBLP DOI BibTeX RDF
22	Seyedeh Moloud Amini	Head circumference measurement with deep learning approach based on multi-scale ultrasound images.	Multim. Tools Appl.	2022	DBLP DOI BibTeX RDF
22	Niranjan Balachandran, Anish Hebbar	Cyclability, Connectivity and Circumference.	CoRR	2022	DBLP DOI BibTeX RDF
22	Marcin Brianski, Gwenaël Joret, Konrad Majewski, Piotr Micek, Michal T. Seweryn, Roohani Sharma	Treedepth vs circumference.	CoRR	2022	DBLP DOI BibTeX RDF
22	Xin Wang, Weibo Wang, Xiaodong Cai	Automatic measurement of fetal head circumference using a novel GCN-assisted deep convolutional network.	Comput. Biol. Medicine	2022	DBLP DOI BibTeX RDF
22	Chaoran Yang, Zeyu Yang, Shanshan Liao, Jiaqi Guo, Shaowei Yin, Caixia Liu, Yan Kang	A new approach to automatic measure fetal head circumference in ultrasound images using convolutional neural networks.	Comput. Biol. Medicine	2022	DBLP DOI BibTeX RDF
22	Jing Zhang 0086, Caroline Petitjean, Samia Ainouz 0001	Segmentation-Based vs. Regression-Based Biomarker Estimation: A Case Study of Fetus Head Circumference Assessment from Ultrasound Images.	J. Imaging	2022	DBLP DOI BibTeX RDF
22	Thomas L. A. van den Heuvel	Automated measurement of fetal head circumference using 2D ultrasound images.		2022	DOI RDF
22	Helena R. Torres, Bruno Oliveira 0002, Pedro Morais, Anne Fritze, Cahit Birdir, Mario Rüdiger, Jaime C. Fonseca 0001, João L. Vilaça	Fetal head circumference delineation using convolutional neural networks with registration-based ellipse fitting.	Medical Imaging: Image Processing	2022	DBLP DOI BibTeX RDF
22	Yu Wang 0162, Yudong Yao	A comparative study on fetal head circumference measurement from ultrasound images using deep learning models.	RICAI	2022	DBLP DOI BibTeX RDF
22	Igor Fabrici, Jochen Harant, Samuel Mohr, Jens M. Schmidt	Circumference of essentially 4-connected planar triangulations.	J. Graph Algorithms Appl.	2021	DBLP DOI BibTeX RDF
22	Yan Zeng, Po-Hsiang Tsui, Weiwei Wu, Zhuhuang Zhou, Shuicai Wu	Fetal Ultrasound Image Segmentation for Automatic Head Circumference Biometry Using Deeply Supervised Attention-Gated V-Net.	J. Digit. Imaging	2021	DBLP DOI BibTeX RDF
22	Xia Liu, Liming Xiong, Hong-Jian Lai	Strongly Spanning Trailable Graphs with Small Circumference and Hamilton-Connected Claw-Free Graphs.	Graphs Comb.	2021	DBLP DOI BibTeX RDF
22	Yibin Fang, Liming Xiong	Circumference of a graph and its distance dominating longest cycles.	Discret. Math.	2021	DBLP DOI BibTeX RDF
22	Maria Chiara Fiorentino, Sara Moccia, Morris Capparuccini, Sara Giamberini, Emanuele Frontoni	A regression framework to head-circumference delineation from US fetal images.	Comput. Methods Programs Biomed.	2021	DBLP DOI BibTeX RDF
22	Jens Ahrens, Hannes Helmholz, David Lou Alon, Sebastià V. Amengual Garí	Spherical Harmonic Decomposition of a Sound Field Based on Microphones Around the Circumference of a Human Head.	WASPAA	2021	DBLP DOI BibTeX RDF
22	Kamui Ono, Reimei Koike, Yutaka Miyazaki, Mariko Masujima, Keiko Ogawa-Ochiai, Norimichi Tsumura	A Circumference-Measurement Method Using a Model of a Leg and a 3D Camera.	EMBC	2021	DBLP DOI BibTeX RDF
22	Everton Leonardo Skeika, Mathias Rodrigues Da Luz, Bruno José Torres Fernandes, Hugo Valadares Siqueira, Mauren Louise Sguario C. Andrade	Convolutional Neural Network to Detect and Measure Fetal Skull Circumference in Ultrasound Imaging.	IEEE Access	2020	DBLP DOI BibTeX RDF
22	Igor Fabrici, Jochen Harant, Samuel Mohr, Jens M. Schmidt	On the Circumference of Essentially 4-connected Planar Graphs.	J. Graph Algorithms Appl.	2020	DBLP DOI BibTeX RDF
22	Jie Ma 0002, Bo Ning 0001	Stability Results on the Circumference of a Graph.	Comb.	2020	DBLP DOI BibTeX RDF
22	Yansel González Tejeda, Helmut Mayer 0003	CALVIS: chest, waist and pelvis circumference from 3D human body meshes as ground truth for deep learning.	CoRR	2020	DBLP BibTeX RDF
22	Alexandr V. Kostochka, Ruth Luo	On r-uniform hypergraphs with circumference less than r.	Discret. Appl. Math.	2020	DBLP DOI BibTeX RDF
22	Dasom Seo, Euncheol Kang, Yu-mi Kim, Sun-Young Kim, Il-Seok Oh, Min-Gul Kim	SVM-based waist circumference estimation using Kinect.	Comput. Methods Programs Biomed.	2020	DBLP DOI BibTeX RDF
22	Jing Zhang 0086, Caroline Petitjean, Pierre Lopez, Samia Ainouz 0001	Direct estimation of fetal head circumference from ultrasound images based on regression CNN.	MIDL	2020	DBLP BibTeX RDF
22	Devi T. Avalokita, Tessya Rismonita, Astri Handayani, Agung W. Setiawan	Automatic Fetal Head Circumference Measurement in 2D Ultrasound Images Based On Optimized Fast Ellipse Fitting.	TENCON	2020	DBLP DOI BibTeX RDF
22	Jing Zhang 0086, Caroline Petitjean, Florian Yger, Samia Ainouz 0001	Explainability for Regression CNN in Fetal Head Circumference Estimation from Ultrasound Images.	iMIMIC/MIL3ID/LABELS@MICCAI	2020	DBLP DOI BibTeX RDF
22	Tetsushi Kamegawa, Taichi Akiyama, Yosuke Suzuki, Toru Kishutani, Akio Gofuku	Three-Dimensional Reflexive Behavior by a Snake Robot with Full Circumference Pressure Sensors.	SII	2020	DBLP DOI BibTeX RDF
22	Jie Xue 0004, Huiqiu Lin, Jinlong Shu	The algebraic connectivity of graphs with given circumference.	Theor. Comput. Sci.	2019	DBLP DOI BibTeX RDF
22	Samuel Budd, Matthew Sinclair, Bishesh Khanal, Jacqueline Matthew, David Lloyd 0003, Alberto Gómez 0002, Nicolas Toussaint, Emma C. Robinson, Bernhard Kainz	Confident Head Circumference Measurement from Ultrasound with Real-time Feedback for Sonographers.	CoRR	2019	DBLP BibTeX RDF
22	Verónica Hernández, Domingo Pestana, José M. Rodríguez 0001	Several extremal problems on graphs involving the circumference, girth, and hyperbolicity constant.	Discret. Appl. Math.	2019	DBLP DOI BibTeX RDF
22	Graziano Chesi	Stability Test for Complex Matrices Over the Complex Unit Circumference via LMIs and Applications in 2D Systems.	IEEE Trans. Circuits Syst. I Regul. Pap.	2019	DBLP DOI BibTeX RDF
22	Takahiro Miura, Mari Ueda, Masaaki Hiroe, Ken-ichiro Yabu	Acousess: smartphone-based logger to assess acoustical conditions: subjective noise conditions on some circumference and intraindividual variation.	SAC	2019	DBLP DOI BibTeX RDF
22	Vida Dujmovic, Pat Morin	Dual Circumference and Collinear Sets.	SoCG	2019	DBLP DOI BibTeX RDF
22	Samuel Budd, Matthew Sinclair, Bishesh Khanal, Jacqueline Matthew, David Lloyd 0003, Alberto Gómez 0002, Nicolas Toussaint, Emma C. Robinson, Bernhard Kainz	Confident Head Circumference Measurement from Ultrasound with Real-Time Feedback for Sonographers.	MICCAI (4)	2019	DBLP DOI BibTeX RDF
22	Yuki Tanida, Kaori Fujinami	Visible Position Estimation in Whole Wrist Circumference Device towards Forearm Pose-aware Display.	EAI Endorsed Trans. Context aware Syst. Appl.	2018	DBLP DOI BibTeX RDF
22	Pu Qiao, Xingzhi Zhan	The maximum girth and minimum circumference of graphs with prescribed radius and diameter.	Discret. Math.	2018	DBLP DOI BibTeX RDF
22	Jaeseong Jang, Yejin Park, Bukweon Kim, Sung Min Lee, Ja-Young Kwon, Jin Keun Seo	Automatic Estimation of Fetal Abdominal Circumference From Ultrasound Images.	IEEE J. Biomed. Health Informatics	2018	DBLP DOI BibTeX RDF
22	Jing Li, Yi Wang 0031, Baiying Lei, Jie-Zhi Cheng, Jing Qin 0001, Tianfu Wang 0001, Shengli Li 0001, Dong Ni 0001	Automatic Fetal Head Circumference Measurement in Ultrasound Using Random Forest and Fast Ellipse Fitting.	IEEE J. Biomed. Health Informatics	2018	DBLP DOI BibTeX RDF
22	Chung-Wen Hung, Jhen-Gu Jiang, Hsien-Huang P. Wu, Wei-Lung Mao	An Automated Optical Inspection system for a tube inner circumference state identification.	J. Robotics Netw. Artif. Life	2018	DBLP DOI BibTeX RDF
22	Qinghai Liu, Xingxing Yu, Zhao Zhang 0002	Circumference of 3-connected cubic graphs.	J. Comb. Theory, Ser. B	2018	DBLP DOI BibTeX RDF
22	Cristian Lorenz, Tom Brosch, Cybèle Ciofolo-Veit, Tobias Klinder, Thierry Lefevre, Angelo Cavallaro, Ibtisam Salim, Aris T. Papageorghiou, Caroline Raynaud, David Roundhill, Laurence Rouet, Nicole Schadewaldt, Alexander Schmidt-Richberg	Automated abdominal plane and circumference estimation in 3D US for fetal screening.	Medical Imaging: Image Processing	2018	DBLP DOI BibTeX RDF
22	Claudine Géhin, Etienne Grenier, Cyril Chaigneau, Bertrand Massot, Arthur Claude, Amalric Montalibet, Eric McAdams	Ambulatory sensor for circumference monitoring of lower limbs.	EMBC	2018	DBLP DOI BibTeX RDF
22	Graziano Chesi	Determinant-Based Hurwitz Test For Complex Matrices Over The Complex Unit Circumference And Applications in 2D Systems.	ISCAS	2018	DBLP DOI BibTeX RDF
22	Wei-Ting Li, Chung-Wen Hung, Ching-Ju Chen	Tube Inner Circumference State Classification Optimization by Using Artificial Neural Networks, Random Forest and Support Vector Machines Algorithms.	ICS	2018	DBLP DOI BibTeX RDF
22	Dimitra Tzoumpa, Theodoros Karvounidis, Christos Douligeris	Circle's Ontology Extended: Circumference and Surface Area of a Circle.	ICL (1)	2018	DBLP DOI BibTeX RDF
22	Shiva Kintali	Directed width parameters and circumference of digraphs.	Theor. Comput. Sci.	2017	DBLP DOI BibTeX RDF
22	Jaeseong Jang, Ja-Young Kwon, Bukweon Kim, Sung Min Lee, Yejin Park, Jin Keun Seo	CNN-based Estimation of Abdominal Circumference from Ultrasound images.	CoRR	2017	DBLP BibTeX RDF
22	Matthew White	The Monochromatic Circumference of 2-Edge-Colored Graphs.	J. Graph Theory	2017	DBLP DOI BibTeX RDF
22	Ting Xue, Ce Zhou, Xiaokang Lin	Circumference liquid film measurement method with single high-speed camera.	I2MTC	2017	DBLP DOI BibTeX RDF
22	Hongtao Bai, Jinwei Fang, Fengxu Zhang, Xiaomeng Sun	A Parallel Adaptive Circumference Method with OpenMP.	CSA/CUTE	2017	DBLP DOI BibTeX RDF
22	Abdul Manan Khan, Muhammad Usman 0019, Ahmad Ali, Fatima Khan, Sheraz Yaqub, Chang-Soo Han	Muscle circumference sensor and model reference-based adaptive impedance control for upper limb assist exoskeleton robot.	Adv. Robotics	2016	DBLP DOI BibTeX RDF
22	Xiaoling Ma, Hong-Jian Lai, Wei Xiong 0002, Baoyingdureng Wu, Xinhui An	Supereulerian graphs with small circumference and 3-connected hamiltonian claw-free graphs.	Discret. Appl. Math.	2016	DBLP DOI BibTeX RDF
22	Jørgen Bang-Jensen, Tilde My Larsen	DAG-Width and Circumference of Digraphs.	J. Graph Theory	2016	DBLP DOI BibTeX RDF
22	Edita Mácajová, Ján Mazák	Cubic Graphs with Large Circumference Deficit.	J. Graph Theory	2016	DBLP DOI BibTeX RDF
22	Kentaro Tsubaki, Tsutomu Terada, Masahiko Tsukamoto	An Activity Recognition Method by Measuring Circumference of Body Parts.	AH	2016	DBLP DOI BibTeX RDF
22	Vidhi Rawat, Alok Jain, Vibhakar Shrimali, Abhishek Rawat	Automatic Detection of Fetal Abnormality Using Head and Abdominal Circumference.	ICCCI (2)	2016	DBLP DOI BibTeX RDF
22	Yuki Matsuda 0001, Takashi Hasegawa, Ismail Arai, Yutaka Arakawa, Keiichi Yasumoto	Waistonbelt 2: a belt-type wearable device for monitoring abdominal circumference, posture and activity.	ICMU	2016	DBLP DOI BibTeX RDF
22	Deborah Janowitz, Katharina Wittfeld, Jan Terock, Harald Jürgen Freyberger, Katrin Hegenscheid, Henry Völzke, Mohamad Habes, Norbert Hosten, Nele Friedrich, Matthias Nauck, Grazyna Domanska, Hans Jörgen Grabe	Association between waist circumference and gray matter volume in 2344 individuals from two adult community-based samples.	NeuroImage	2015	DBLP DOI BibTeX RDF
22	Jørgen Bang-Jensen, Tilde My Larsen	DAG-width and circumference of digraphs.	CoRR	2015	DBLP BibTeX RDF
22	Ivan A. Matveev, Vladimir I. Tsurkov, Nikolay N. Chinaev	Seeking pupil circumference by the Hough transformation for the boundaries of the connectivity components.	Autom. Remote. Control.	2015	DBLP DOI BibTeX RDF
22	Emily Abernethy Marshall, David R. Wood	Circumference and Pathwidth of Highly Connected Graphs.	J. Graph Theory	2015	DBLP DOI BibTeX RDF
22	Yuki Matsuda 0001, Takashi Hasegawa, Keiichiro Iwanami, Naoya Saito, Takuya Ishioka, Ismail Arai, Yutaka Arakawa, Keiichi Yasumoto	WaistonBelt: a belt for monitoring your real abdominal circumference forever.	UbiComp/ISWC Adjunct	2015	DBLP DOI BibTeX RDF
22	Shumit Saha, Mahsa Taheri, Zahra Mossuavi, Azadeh Yadollahi	Effects of changing in the neck circumference during sleep on snoring sound characteristics.	EMBC	2015	DBLP DOI BibTeX RDF
22	Graziano Chesi	On the robust asymptotical stability of uncertain complex matrices over the complex unit circumference.	CDC	2015	DBLP DOI BibTeX RDF
22	Stephan Brandt, Janina Müttel, Dieter Rautenbach	The circumference of the square of a connected graph.	Comb.	2014	DBLP DOI BibTeX RDF
22	Shiva Kintali	Directed Width Parameters and Circumference of Digraphs.	CoRR	2014	DBLP BibTeX RDF
22	Shuya Chiba, Masao Tsugaki, Tomoki Yamashita	Degree sum conditions for the circumference of 4-connected graphs.	Discret. Math.	2014	DBLP DOI BibTeX RDF
22	Cameron Allan Gunn, Jennifer L. Dickson, Christopher G. Pretty, Jane M. Alsweiler, Adrienne Lynn, Geoffrey M. Shaw, J. Geoffrey Chase	Brain mass estimation by head circumference and body mass methods in neonatal glycaemic modelling and control.	Comput. Methods Programs Biomed.	2014	DBLP DOI BibTeX RDF
22	Hirotaka Sumitomo, Takuya Katayama, Tsutomu Terada, Masahiko Tsukamoto	Implementation and evaluation on a concealed interface using abdominal circumference.	AH	2014	DBLP DOI BibTeX RDF
22	Anna Fabijanska, Tomasz Weglinski, Jaroslaw Goclawski, Wanda Mikolajczyk-Wieczorek, Krzysztof Zakrzewski, Emilia Nowoslawska	Automatic Assessment of Skull Circumference in Craniosynostosis.	ICCVG	2014	DBLP DOI BibTeX RDF
22	Shinya Fujita 0001, Linda M. Lesniak	Revisit of Erdős-Gallai's theorem on the circumference of a graph.	Inf. Process. Lett.	2013	DBLP DOI BibTeX RDF
22	Ajit A. Diwan, Sreyash Kenkre, Sundar Vishwanathan	Circumference, chromatic number and online coloring.	Comb.	2013	DBLP DOI BibTeX RDF
22	Zh. G. Nikoghosyan	Advanced Lower Bounds for the Circumference.	Graphs Comb.	2013	DBLP DOI BibTeX RDF
22	Edita Mácajová, Ján Mazák	Cubic graphs with large circumference deficit.	CoRR	2013	DBLP BibTeX RDF