WOJTASIK, M.; SZATTEN, D. A. Wyznaczanie gęstości naturalnej gleb = Determination of natural bulk density of soils. Journal of Education, Health and Sport, [S. l.], v. 5, n. 3, p. 218–228, 2015. Disponível em: https://apcz.umk.pl/JEHS/article/view/2594. Acesso em: 16 apr. 2024.