@article{PFMT_2019_4_a17,
     author = {M. A. Kirkor and A. E. Pokatilov and A. M. Gal'mak},
     title = {The study of the spatial movement in biomechanics of sports with the help of quaternions},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {92--97},
     publisher = {mathdoc},
     number = {4},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2019_4_a17/}
}