ZAPF, Rita; SCHULTHEISS, Ute; DÖHLER, Helmut; DOLUSCHITZ, Reiner. Was leisten Systeme zur Bewertung betrieblicher Nachhaltigkeit. agricultural-engineering.eu, [S. l.], v. 64, n. 6, p. 406–408, 2009. DOI: 10.15150/lt.2009.704. Disponível em: https://www.agricultural-engineering.eu/landtechnik/article/view/2009-64-6-406-408. Acesso em: 28 märz. 2024.