HOLM JAKOBSEN, B. Humus, its structure and role in agriculture and environment. Proceedings of the 10th symposium humus et planta, held in Prague August 1991. J. Kubát (ed.). - (Developments in agricultural and managed-forest ecology; 25). Geografisk Tidsskrift, [S. l.], v. 93, 1993. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/42244. Acesso em: 9 dec. 2024.