Retraction notice to "Investigating the efficiency in oil futures market based on GMDH approach" [Expert Systems with Applications 36 (2009) 7479-7483].
Retraction notice to "Investigating the efficiency in oil futures market based on GMDH approach" [Expert Systems with Applications 36 (2009) 7479-7483].
(xsd:string)
Retraction notice to "Investigating the efficiency in oil futures market based on GMDH approach" [Expert Systems with Applications 36 (2009) 7479-7483].
(xsd:string)