00543naa#a2200181#i#450# EN\\bibl\11925 20241128230526.4 1995-042X 20160616b2016####ek#y0engy0150####ca RUS RU The use of legal-reference systems for professional training in tourism Journal article CHERKIZOVO Russian State University of Tourism and Service 2016 9 с. Journal article local Dashkovskaya Olga Melnikova Inna zh-szf.ru