00498naa#a2200169#i#450# EN\\bibl\6612 20260211111838.3 1609-3178 20150901b2015####ek#y0engy0150####ca RUS RU AE Sources Localization Accuracy Improvement During Cross-country Gas Pipelines Testing Journal article Saint-Petersburg LLC SVEN 2015 2 с. Journal article local Zhukov Anton Valer'evich zh-szf.ru