Griban, Grygoriy, Prontenko, Kostiantyn, Zhamardiy, Valery, Tkachenko, Pavlo, Kruk, Mykola, Kostyuk, Yuliya, Zhukovskyi, Yevgenii (2018) Professional stages of a physical education teacher as determined using fitness technologies. Journal of Physical Education and Sport (18(2)). с. 565-569. ISSN 2247 - 806X