00616naa#a2200181#i#450# EN\\bibl\12148 20240512171856.7 1995-042X 20160921b2016####ek#y0engy0150####ca RUS RU Development indicators of children and youth tourism in additional education system and sports tourism: Comparative analysis Journal article CHERKIZOVO Russian State University of Tourism and Service 2016 6 с. Journal article local Pavlov Evgeniy Belyakova Irina service-rusjournal.editorum.ru