TY JOUR TI On the 100th anniversary of the publication of the book "Theory of Physical Culture" by G.A. Duperron KW theory of physical culture KW Duperron G.A. KW terminology JO Scientific notes of P. F. Lesgaft University AU Ashkinazi, S.M. AU Kuramshin, Y.F. AU Pronin, S.A. PY 2025 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft