00551naa#a2200181#i#450# EN\\bibl\113242 20260118200839.7 2311-1402 20090325b2009####ek#y0engy0150####ca RUS RU Analiz riska avariynosti neftepromyslovykh truboprovodnykh sistem Nizhnevartovskogo rayona Journal article Nizhnevartovsk Nizhnevartovsk State University 2009 3 с. Journal article local Azizov Kh F Khodzhaeva G K vestnik.nvsu.ru