00504naa#a2200181#i#450# EN\RIOR\bibl\373 20250102171610.4 2500-1469 20130701b2013####ek#y0engy0150####ca RUS RU Procedure surface of the basis risk management system Journal article Moscow Publishing Center RIOR 2013 15 с. Journal article local Sokolov Dmitriy Barchukov Alyeksyey riorpub.com