TY JOUR TI GENETIC CHARACTERISTICS OF HIGHLY QUALIFIED POLYATHLETE ATHLETES SPECIALIZING IN 3-BORYE WITH CROSS-COUNTRY SKIING KW genetic factor KW model characteristics KW polyathlon KW 3-borye with cross-country skiing KW individualization KW sports achievements JO Scientific notes of P. F. Lesgaft University AU Konstantinova, A.K. AU Petrov, A.B. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft