Search results for "LDPC"

Hits ?▲	Authors	Title	Venue	Year	Link
9	Louis Golowich, Tali Kaufman	NLTS Hamiltonians and Strongly-Explicit SoS Lower Bounds from Low-Rate Quantum LDPC Codes.	Electron. Colloquium Comput. Complex.	2023	DBLP BibTeX RDF
9	Bhuvaneshwari Pitchaimuthu Vairaperumal, Tharini Chandrapragasam	Novel algorithm to construct QC-LDPC codes for high data rate applications.	Informatica (Slovenia)	2023	DBLP DOI BibTeX RDF
9	Weimin Kang	A nonbinary LDPC-coded product distribution matching probabilistic shaping scheme for high order modulation.	Digit. Signal Process.	2023	DBLP DOI BibTeX RDF
9	Mingyang Zhu, Ming Jiang 0012, Chunming Zhao, Lijie Hu, Xiaodong Xu	A low-floor bit-mapping scheme for LDPC coded BICM for 5G and beyond systems.	Sci. China Inf. Sci.	2023	DBLP DOI BibTeX RDF
9	Zhiping Xu, Dan Song 0008, Jiachun Zheng, Lin Wang	Joint-decoding-complexity-oriented collaborative design for joint source-channel coding system based on double protograph-LDPC codes.	Sci. China Inf. Sci.	2023	DBLP DOI BibTeX RDF
9	Juane Li, Yi Gong, Xin Xiao, Shu Lin 0001, Khaled A. S. Abdel-Ghaffar	Cyclic Partial Geometries and Their Associated LDPC and Constant-Weight Codes.	IEEE Trans. Inf. Theory	2023	DBLP DOI BibTeX RDF
9	Roman Sokolovskii, Alexandre Graell i Amat, Fredrik Brännström	Finite-Length Scaling of SC-LDPC Codes With a Limited Number of Decoding Iterations.	IEEE Trans. Inf. Theory	2023	DBLP DOI BibTeX RDF
9	Irina E. Bocharova, Boris D. Kudryashov, Evgenii P. Ovsyannikov, Vitaly Skachek	Nonbinary LDPC Coded QAM Signals With Optimized Mapping: Bounds and Simulation Results.	IEEE Trans. Inf. Theory	2023	DBLP DOI BibTeX RDF
9	Yajuan Du, Siyi Huang, Yao Zhou, Qiao Li 0001	Towards LDPC Read Performance of 3D Flash Memories with Layer-induced Error Characteristics.	ACM Trans. Design Autom. Electr. Syst.	2023	DBLP DOI BibTeX RDF
9	Meng Zhang 0014, Xiaoyi Zhang, Fei Wu 0005, Kai Tao, Feng Zhu 0024, Shu Li, Yahui Zhao, Changsheng Xie	ALCod: Adaptive LDPC Coding for 3-D NAND Flash Memory Using Inter-Layer RBER Variation.	IEEE Trans. Consumer Electron.	2023	DBLP DOI BibTeX RDF
9	Guanyu Zhu, Shehryar Sikander, Elia Portnoy, Andrew W. Cross, Benjamin J. Brown	Non-Clifford and parallelizable fault-tolerant logical gates on constant and almost-constant rate homological quantum LDPC codes via higher symmetries.	CoRR	2023	DBLP DOI BibTeX RDF
9	Shouzhen Gu, Eugene Tang, Libor Caha, Shin Ho Choe, Zhiyang He, Aleksander Kubica	Single-shot decoding of good quantum LDPC codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Uday Kumar Reddy Vengalam, Andrew Hahn, Yongchao Liu, Anshujit Sharma, Hui Wu, Michael C. Huang 0001	Efficient LDPC Decoding using Physical Computation.	CoRR	2023	DBLP DOI BibTeX RDF
9	Jessica Bariffi, Hannes Bartz, Gianluigi Liva, Joachim Rosenthal	Error-Correction Performance of Regular Ring-Linear LDPC Codes over Lee Channels.	CoRR	2023	DBLP DOI BibTeX RDF
9	Beyza Dabak, Ece Tiryaki, A. Robert Calderbank, Ahmed H. Hareedy	LDPC Decoders Prefer More Reliable Parity Bits: Unequal Data Protection Over BSC.	CoRR	2023	DBLP DOI BibTeX RDF
9	Yuqing Ren, Hassan Harb, Yifei Shen, Alexios Balatsoukas-Stimming, Andreas Burg	A High-Performance and Low-Complexity 5G LDPC Decoder: Algorithm and Implementation.	CoRR	2023	DBLP DOI BibTeX RDF
9	Mohammad Gholami, Zahra Gholami	An Efficient Algorithm for Counting Cycles in QC and APM LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Louis Golowich, Tali Kaufman	NLTS Hamiltonians and Strongly-Explicit SoS Lower Bounds from Low-Rate Quantum LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Heeyoul Kwak, Daeyoung Yun, Yongjune Kim 0001, Sang-Hyo Kim, Jong-Seon No	Boosting Learning for LDPC Codes to Improve the Error-Floor Performance.	CoRR	2023	DBLP DOI BibTeX RDF
9	Guangwen Li, Xiao Yu	The impact when neural min-sum variants meet ordered statistics decoding of LDPC codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Salman Habib, David G. M. Mitchell	Reinforcement Learning for Sequential Decoding of Generalized LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Jamison R. Ebert, Jean-François Chamberland, Krishna R. Narayanan	On Sparse Regression LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Tomas Palenik, Viktor Szitkey	High Throughput Open-Source Implementation of Wi-Fi 6 and WiMAX LDPC Encoder and Decoder.	CoRR	2023	DBLP DOI BibTeX RDF
9	Sana Javed, Francisco Garcia-Herrero, Bane Vasic, Mark F. Flanagan	Low-Complexity Linear Programming Based Decoding of Quantum LDPC codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Jia Zhan, Francis C. M. Lau 0002	Joint Design of Source-Channel Codes with Linear Source Encoding Complexity and Good Channel Thresholds Based on Double-Protograph LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Debarnab Mitra, Lev Tauz, Murat Can Sarihan, Chee Wei Wong, Lara Dolecek	Non-Binary LDPC Code Design for Energy-Time Entanglement Quantum Key Distribution.	CoRR	2023	DBLP DOI BibTeX RDF
9	Daniil Yudakov, Dmitrii Kolosov, Evgeny Bobrov	Mapper Side Geometric Shaping for QAM Constellations in 5G MIMO Wireless Channel with Realistic LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Tadashi Wadayama, Kensho Nakajima, Ayano Nakai-Kasai	Gradient Flow Decoding for LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Massimo Battaglioni, Marco Baldi, Franco Chiaraluce, Giovanni Cancellieri	Rate-compatible LDPC Codes based on Primitive Polynomials and Golomb Rulers.	CoRR	2023	DBLP DOI BibTeX RDF
9	Evgeny Bobrov, Adyan Dordzhiev	On Probabilistic QAM Shaping for 5G MIMO Wireless Channel with Realistic LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Jamison R. Ebert, Jean-François Chamberland, Krishna R. Narayanan	Sparse Regression LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Peihong Yuan, Muriel Médard, Kevin Galligan, Ken R. Duffy	Outperforming 5G LDPC codes with GRAND over long, low rate codes - making a long story short.	CoRR	2023	DBLP DOI BibTeX RDF
9	Zeinab Roostaie, Mohammad Gholami, Farzad Parvaresh	4-Cycle Free Spatially Coupled LDPC Codes with an Explicit Construction.	CoRR	2023	DBLP DOI BibTeX RDF
9	Sisi Miao, Alexander Schnerring, Haizheng Li, Laurent Schmalen	Quaternary Neural Belief Propagation Decoding of Quantum LDPC Codes with Overcomplete Check Matrices.	CoRR	2023	DBLP DOI BibTeX RDF
9	Guangwen Li, Xiao Yu	Deep learning based enhancement of ordered statistics decoding of LDPC codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Yihuan Liao, Min Qiu 0001, Jinhong Yuan	Self-Connected Spatially Coupled LDPC Codes with Improved Termination.	CoRR	2023	DBLP DOI BibTeX RDF
9	Weiyang Zhang, Chentao Yue, Yonghui Li 0001, Branka Vucetic	Efficient Near Maximum-Likelihood Reliability-Based Decoding for Short LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Wu Guan, Liping Liang	Check Belief Propagation Decoding of LDPC Codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Lucas Berent, Timo Hillmann, Jens Eisert, Robert Wille, Joschka Roffe	Analog information decoding of bosonic quantum LDPC codes.	CoRR	2023	DBLP DOI BibTeX RDF
9	Hanwen Yao, Waleed Abu Laban, Christian Häger, Alexandre Graell i Amat, Henry D. Pfister	Belief Propagation Decoding of Quantum LDPC Codes with Guided Decimation.	CoRR	2023	DBLP DOI BibTeX RDF
9	Binghui Shi, Yongpeng Wu 0001, Peihong Yuan, Derrick Wing Kwan Ng, Xiang-Gen Xia 0001, Wenjun Zhang 0001	Code-Aided Channel Estimation in LDPC-Coded MIMO Systems.	CoRR	2023	DBLP DOI BibTeX RDF
9	Hong-Fu Chou	An Optimal Unequal Error Protection LDPC Coded Recording System.	CoRR	2023	DBLP DOI BibTeX RDF
9	Haizheng Li, Laurent Schmalen	A Spatially Coupled LDPC Coding Scheme with Scalable Decoders for Space Division Multiplexing.	CoRR	2023	DBLP DOI BibTeX RDF
9	Shuo Liang, Xingcheng Liu, Suipeng Xie	Partial IDS decoding based on the base graph of protograph LDPC codes.	IET Commun.	2023	DBLP DOI BibTeX RDF
9	Yang Liu 0268, Bin Wang 0031, Zeyue Zhang, Yuzhi Zhang, Chau Yuen	Rate-compatible spatially coupled LDPC code ensembles by partial repetition extension.	IET Commun.	2023	DBLP DOI BibTeX RDF
9	Guangwen Li, Xiao Yu, Yuan Luo, Guangfen Wei	A bottom-up design methodology of neural min-sum decoders for LDPC codes.	IET Commun.	2023	DBLP DOI BibTeX RDF
9	Joschka Roffe, Lawrence Z. Cohen, Armanda Ottaviano Quintavalle, Daryus Chandra, Earl T. Campbell	Bias-tailored quantum LDPC codes.	Quantum	2023	DBLP DOI BibTeX RDF
9	Dharmeshkumar Patel, Ninad Bhatt	Performance Evaluation of Conventional and Neural Network-Based Decoder for an Audio of Low-Girth LDPC Code.	J. Electr. Comput. Eng.	2023	DBLP DOI BibTeX RDF
9	Komal Arora, Jaswinder Singh, Yogeshwar Singh Randhawa	Performance evaluation of energy optimized precoded - LDPC encoded system.	Wirel. Networks	2023	DBLP DOI BibTeX RDF
9	Dan Song 0008, Meiyuan Miao, Lin Wang 0003	Protograph Designing of P-LDPC Codes via M3 Method.	Entropy	2023	DBLP DOI BibTeX RDF
9	Qiwang Chen, Yanzhao Ren, Lin Zhou, Chen Chen 0060, Sanya Liu	Design and Analysis of Joint Group Shuffled Scheduling Decoding Algorithm for Double LDPC Codes System.	Entropy	2023	DBLP DOI BibTeX RDF
9	Jinkai Ren, Dan Song 0008, Huihui Wu, Lin Wang 0003	Lossy P-LDPC Codes for Compressing General Sources Using Neural Networks.	Entropy	2023	DBLP DOI BibTeX RDF
9	Yuan Li, Ying Guo	Quantum LDPC Codes Based on Cocyclic Block Matrices.	Entropy	2023	DBLP DOI BibTeX RDF
9	Nikolay Borisov, Ivan Petrov, Andrey Tayduganov	Asymmetric Adaptive LDPC-Based Information Reconciliation for Industrial Quantum Key Distribution.	Entropy	2023	DBLP DOI BibTeX RDF
9	Wenyue Zhang, Min Zhu 0003	Weighted BATS Codes with LDPC Precoding.	Entropy	2023	DBLP DOI BibTeX RDF
9	Yijie Lv, Shaohua Hong, Lin Wang 0003	Design and Optimization of Linking Matrix for a JSCC System Based on DP-LDPC Codes.	Entropy	2023	DBLP DOI BibTeX RDF
9	Yang Liu 0268, Sha Sun, Yuzhi Zhang, Bin Wang	Finite-Length Analysis for Spatially Coupled LDPC Codes Based on Base Matrix.	Entropy	2023	DBLP DOI BibTeX RDF
9	Qiwang Chen, Zhiping Xu, Huihui Wu, Guofa Cai	Analysis and Optimization of a General Linking Matrix for JSCC Scheme Based on Double LDPC Codes.	Entropy	2023	DBLP DOI BibTeX RDF
9	Qian Guo 0001, Denis Nabokov, Alexander Nilsson, Thomas Johansson 0001	SCA-LDPC: A Code-Based Framework for Key-Recovery Side-Channel Attacks on Post-Quantum Encryption Schemes.	IACR Cryptol. ePrint Arch.	2023	DBLP BibTeX RDF
9	Leonardo Henrique Gonsioroski, Amanda Beatriz dos Santos, Natalia Castro Fernandes, Pedro V. Gonzalez Castellanos, Leni J. de Matos, Luiz A. R. da Silva Mello	Evaluation of the Field-Test Results of Advanced ISDB-T System With Low-Rate LDPC Codes.	IEEE Trans. Broadcast.	2023	DBLP DOI BibTeX RDF
9	Yidi Zhang, Ming Jiang 0012	Genetic optimization of 5G-NR LDPC codes for lowering the error floor of BICM systems.	Phys. Commun.	2023	DBLP DOI BibTeX RDF
9	Hua Xu, Wenjuan Shi, Yanjing Sun	Performance analysis and design of quasi-cyclic LDPC codes for underwater magnetic induction communications.	Phys. Commun.	2023	DBLP DOI BibTeX RDF
9	Emna Ben Yacoub, Gianluigi Liva	Analysis of Binary and Ternary Message Passing Decoding for Generalized LDPC Codes.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Dan Song 0008, Jinkai Ren, Lin Wang 0003, Guanrong Chen	GaussianSource Coding Based on P-LDPC Code.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Yiming Chen, Rui Wang 0060, Jinglong Zhu, Zaiwen Wen	Decoding LDPC Codes by Using Negative Proximal Regularization.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Qianfan Wang, Suihua Cai, Xiao Ma 0001	Free-Ride Coding for Constructions of Coupled LDPC Codes.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Inayat Ali, Jeongseok Ha	Partial Spatial Coupling of LDPC Codes: Reducing the Gap to Capacity by Improving the Rate.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Teng Lu, Xuan He, Peng Kang 0001, Jiongyue Xing, Xiaohu Tang	Parity-Check Matrix Partitioning for Efficient Layered Decoding of QC-LDPC Codes.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Salman Habib, Allison Beemer, Jörg Kliewer	RELDEC: Reinforcement Learning-Based Decoding of Moderate Length LDPC Codes.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Liang Lv, Yi Fang 0005, Lin Dai 0002, Yonghui Li 0001, Mohsen Guizani	Asymmetric Dual-Mode Constellation and Protograph LDPC Code Design for Generalized Spatial MPPM Systems.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Dan Song 0008, Lin Wang 0003, Pingping Chen	Mesh Model-Based Merging Method for DP-LDPC Code Pair.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Qiwang Chen, Yu-Cheng He, Chen Chen 0060, Lin Zhou	Optimization of Protograph LDPC Codes via Surrogate Channel for Unequal Power Allocation.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Yun-Jiang Wang, Zhuo-Yan Xiao, Yi Zhang, Xing-Yu Xiong, Sha Shi	Construction of Multiple-Rate Quantum LDPC Codes Sharing One Scalable Stabilizer Circuit.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Wu Guan, Liping Liang	Check-Belief Propagation Decoding of LDPC Codes.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Qianfan Wang, Suihua Cai, Yinchu Wang, Xiao Ma 0001	Free-Ride Feedback and Superposition Retransmission Over LDPC Coded Links.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Hao Liu, Qiyue Yu	Matryoshka Globally-Coupled LDPC Code.	IEEE Trans. Commun.	2023	DBLP DOI BibTeX RDF
9	Srinivasan Subramaniyan, Oscar Ferraz, M. R. Ashuthosh, Santosh Krishna, Guohui Wang, Joseph R. Cavallaro, Vítor Silva 0001, Gabriel Falcão 0001, Madhura Purnaprajna	Enabling High-Level Design Strategies for High-Throughput and Low-Power NB-LDPC Decoders.	IEEE Des. Test	2023	DBLP DOI BibTeX RDF
9	Adriana-Maria Cuc, Florin Lucian Morgos, Cristian Grava	Performance Analysis of Turbo Codes, LDPC Codes, and Polar Codes over an AWGN Channel in the Presence of Inter Symbol Interference.	Sensors	2023	DBLP DOI BibTeX RDF
9	Chunli Zhao, Fengfan Yang, Daniel Kariuki Waweru, Chen Chen 0031, Hongjun Xu 0001	Optimized Design of Distributed Quasi-Cyclic LDPC Coded Spatial Modulation.	Sensors	2023	DBLP DOI BibTeX RDF
9	Rodrigue Imad, Sébastien Houcke	Carrier phase recovery of LDPC-coded systems based on the likelihood difference algorithm.	EURASIP J. Adv. Signal Process.	2023	DBLP DOI BibTeX RDF
9	Bertrand Le Gal, Christophe Jégo, Vincent Pignoly	High-performance hard-input LDPC decoding on multi-core devices for optical space links.	J. Syst. Archit.	2023	DBLP DOI BibTeX RDF
9	Chengquan Lu, Yi Fang 0005, Lin Dai 0002, Pingping Chen, Guojun Han	An FCResNet-Based Iterative Detection for Protograph LDPC-Coded SRMR-DCSK Systems Under Correlated Noise.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Caizheng Huang, Pingping Chen, Zhaopeng Xie, Yi Fang 0005	Improving LDPC-Coded PNC Decoders via Informed Dynamic Scheduling.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Yihuan Liao, Min Qiu 0001, Jinhong Yuan	Self-Connected Spatially Coupled LDPC Codes With Improved Termination.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Jia Zhan, Francis C. M. Lau 0002	Joint Design of Source-Channel Codes With Linear Source Encoding Complexity and Good Channel Thresholds Based on Double-Protograph LDPC Codes.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Yinchu Wang, Qianfan Wang, Xiao Ma 0001	Design of Implicit Partial Product-LDPC Codes and Low Complexity Decoding Algorithm.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Lin Dai 0002, Yi Fang 0005, Pingping Chen, Guohua Zhang, Mohsen Guizani	A New Transceiver Design for Protograph LDPC-Coded LACO-OFDM VLC Systems With Deep Learning.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Muhammad Umar Farooq 0001, Alexandre Graell i Amat, Michael Lentmaier	Improving the Thresholds of Generalized LDPC Codes With Convolutional Code Constraints.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Massoud Pourmandi, Ali Emre Pusane, Suayb S. Arslan, Elif Haytaoglu	Minimum Repair Bandwidth LDPC Codes for Distributed Storage Systems.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Ruimin Yuan, Baoming Bai, Jian Fang, Rongchi Xu, Jiaqing Wang	Two-Level LDPC-Coded Modulation With Probabilistic Shaping.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Yi Sun, Guojun Han, Chang Liu 0008, Yixin Wang, Yi Fang 0005	An Asymmetric-Error-Aware LDPC Decoding Algorithm for DNA Storage.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Jing Bai 0008, Yuhao Chi, Chau Yuen	Efficient MP Decoding via Fast G-BADMM Approach for Binary LDPC Codes.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Junsheng Yang, Yi Fang 0005, Lin Dai 0002, Pingping Chen, Guojun Han	Residual Network-Based Channel Estimation for the Protograph LDPC-Coded OFDM Systems.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Xiaomeng Guo, Tsung-Hui Chang, Yongchao Wang	Model-Driven Deep Learning ADMM Decoder for Irregular Binary LDPC Codes.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Shaohua Hong, Jianqu Ke, Lin Wang 0003	Global Design of Double Protograph LDPC Codes for Joint Source-Channel Coding.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Wenrui Zhang, Mingyang Zhu, Ming Jiang 0012, Nan Hu	Design and Optimization of LDPC Precoded Finite-Length BATS Codes Under BP Decoding.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Guohua Zhang, Mengdi Ni, Yulin Hu, Yang Yang	Quasi-Cyclic LDPC Codes With Girth at Least Eight Based on Disjoint Difference Sets.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Jianhong Yang, Shaohua Hong, Lin Wang 0003	A Task-Guided Normalized Min-Sum Decoding Network for LDPC Codes-Based DJSCC.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Emmanuel Boutillon, Chris Winstead, Fakhreddine Ghaffari	The Syndrome Bit Flipping Algorithm for LDPC Codes.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF
9	Qiu-Fang Lian, Qiwang Chen, Lin Zhou, Yu-Cheng He, Xianzhong Xie	Adaptive Decoding Algorithm With Variable Sliding Window for Double SC-LDPC Coding System.	IEEE Commun. Lett.	2023	DBLP DOI BibTeX RDF