ČIEGIS, Remigijus. Sustainable Agriculture: Economic Aspects. Ekonomika, [S. l.], v. 68, p. 7–23, 2004. DOI: 10.15388/Ekon.2004.17393. Disponível em: https://www.journals.vu.lt/ekonomika/article/view/17393.. Acesso em: 7 may. 2024.