00509naa#a2200169#i#450# EN\\bibl\767 20241015154744.2 1993-7768 20131211b2013####ek#y0engy0150####ca RUS RU The Development of the Payment Services Market in Russia: Regional Aspect Journal article CHERKIZOVO Russian State University of Tourism and Service 2013 7 с. Journal article local Zaernyuk Viktor naukaru.ru