Khalikov, G. Z., Gerasimova, I. G., Mutaeva, I. Sh., Petrov, R. E. Julkaisussa Theory and Practice of Physical Culture (2020) “...Petrov, R. E....”
Petrov R. E., Mutaeva I. S., Ionov A. A. Julkaisussa The Russian Journal of Physical Education and Sport (2018) “...Petrov R. E....”