00686naa#a2200169#i#450# EN\\bibl\127787 20260722110226.3 1994-4683 20231230b2023####ek#y0engy0150####ca RU THE CONTENT OF THE TRAINING OF MIDDLE-DISTANCE RUNNERS IN THE CONDITIONS OF THE MIDDLE MOUNTAINS Journal article Moscow National State University of Physical Education, Sports and Health named after P.F. Lesgaft 2023 3 с. Journal article local Бег на средние дистанции (от 1000 до 10000 м), например,. 796.422.14 Markushin V S uchzapiski.lesgaft.spb.ru