Παπακωνσταντίνου Α.; Φουσέκης Π. Substitution and expansion effects in Greek agriculture: analysis with a non-parametric approach. SPOUDAI Journal of Economics and Business, [S. l.], v. 51, n. 3-4, p. 76–89, 2001. Disponível em: http://spoudai.org/index.php/journal/article/view/491. Acesso em: 20 sep. 2024.