WALKER, C.; VESTBERG, M. A simple and inexpensive method for producing and maintaining closed pot cultures of arbuscular mycorrhizal fungi. Agricultural and Food Science, [S. l.], v. 3, n. 3, p. 233–240, 1994. DOI: 10.23986/afsci.72701. Disponível em: https://journal.fi/afs/article/view/72701. Acesso em: 3 jul. 2024.