00537naa#a2200169#i#450# EN\\bibl\4778 20240429144657.1 1993-7768 20150306b2015####ek#y0engy0150####ca RUS RU Modern low-cost internet technologies for promotion of educational services of universities Journal article CHERKIZOVO Russian State University of Tourism and Service 2015 5 с. Journal article local Gubina Olesya philosoph.editorum.ru