Morphofunctional features and physical fitness of boys 6 - 9 years old under the influence of various physical activityTamara Abramova, Tatyana Nikitina, Anastasia Polfuntikova, Kristina Oblog and Faina IordanskayaBIO Web Conf., 26 (2020) 00014DOI: https://doi.org/10.1051/bioconf/20202600014