Development of educational motivation through the youth socio-cultural, environmental and leisure practicesVadim Goncharov, Valentina Ivashova, Olga Kolosova, Larisa Tronina and Vyacheslav BerkovskyE3S Web Conf., 258 (2021) 10014DOI: https://doi.org/10.1051/e3sconf/202125810014