Ставрополь
PalievV.V.
Notrh Caucasian Research Designed Institute of Natural Gas,
Russia, 355035, Stavropol, Lenina st., 419
wwwowa@bk.ru
TolpaevVladimirAleksandrovich
North Caucasus State Technical University,
355029, Stavropol, prosp. Kulakova, 2
pm@ncstu.ru
