00727naa#a2200205#i#450# EN\\bibl\18136 20240503130714.5 1999-5644 20170915b2017####ek#y0engy0150####ca RUS RU Polyarchy of knowledge components as a modernization problem of vocational tourism education Journal article CHERKIZOVO Russian State University of Tourism and Service 2017 12 с. Journal article local Туристско-экскурсионное обслуживание. 71.37 grnti Sakharchuk Elena Sergeevna Chupanov Abdulla Kh. Abdulatipova Elmira A. rguts.editorum.ru