00454naa#a2200169#i#450# EN\INFRA-M\bibl\342 20241229010646.7 2587-9103 20130627b2013####ek#y0engy0150####ca RUS RU Business telephone communications Journal article Moscow INFRA-M Academic Publishing LLC. 2013 3 с. Journal article local Dubovskaya O. zh-szf.ru