00703naa#a2200181#i#450# EN\\bibl\121353 20260504212412.1 1994-4683 20230803b2023####ek#y0engy0150####ca RU PREPARATION FOR COMPETITIONS FOR 18-20-YEAR-OLD RUNNERS SPECIALIZING IN MARATHON Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2023 6 с. Journal article local Бег на длинные дистанции (10000 м и более). Стайерский бег, например,. 796.422.16 uchzapiski.lesgaft.spb.ru