00621naa#a2200193#i#450# EN\\bibl\2338 20240518081850.6 1995-042X 20140528b2014####ek#y0engy0150####ca RUS RU IT strategies for tourist and service companies: analyzing challenges, approaches, and validity Journal article CHERKIZOVO Russian State University of Tourism and Service 2014 14 с. Journal article local Ermakov Stanislav Ilkevich Sergey Shlapak Vera service-rusjournal.editorum.ru