WOJTASIK, M.; SZATTEN, D. A. Granulometryczny wskaźnik gęstości naturalnej gleb = Granulometric coefficient of natural bulk density of soil. Journal of Education, Health and Sport, [S. l.], v. 5, n. 5, p. 76–85, 2015. Disponível em: https://apcz.umk.pl/JEHS/article/view/2664. Acesso em: 27 jul. 2024.