BARANYI, Rita. Criteria groups in the eco-labelling process system - comparative analysis focused on the Hungarian system. Periodica Polytechnica Social and Management Sciences, [S. l.], v. 16, n. 1, p. 45–54, 2008. 10.3311/pp.so.2008-1.05. Disponível em: https://pp.bme.hu/so/article/view/1613. Acesso em: 3 may. 2024.