00693naa#a2200181#i#450# EN\\bibl\127928 20260715154231.3 1994-4683 20230228b2023####ek#y0engy0150####ca RU RADIO ORIENTEERING - PREREQUISITES FOR THE EMERGENCE AND PROSPECTS FOR DEVELOPMENT Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2023 4 с. Journal article local Организация и руководство спортом. 796.062 Zelensky Konstantin Grigorievich KHarchenko D A uchzapiski.lesgaft.spb.ru