GREVE, Charlotte. Danish Artists in the International Mail Art Network. Nordlit, Tromsø, Norway, n. 21, p. 183–198, 2007. DOI: 10.7557/13.1759. Disponível em: https://septentrio.uit.no/index.php/nordlit/article/view/1759. Acesso em: 12 may. 2026.