Prokopchuk, Elena, Alexandra Aleksandrova, and Iryna Kravchenko. 2019. “Analgesic Activity of New Complex Compounds SnCl4 With Salicyloylhydrazones of Benzaldehyde and Brombenzaldehyde”. Pedagogy and Psychology of Sport 5 (2):156-64. https://doi.org/10.12775/PPS.2015.05.02.009.