MICHAŁOWSKI, Artur. Ecosystem Services in the Light of a Sustainable Knowledge-based Economy. Problemy Ekorozwoju, [S. l.], v. 7, n. 2, p. 97–106, 2012. Disponível em: https://ph.pollub.pl/index.php/preko/article/view/4826. Acesso em: 22 jul. 2024.