Fernández-Morales, Angélica, Montserrat Bigas Vidal, and Luis Bravo Farré. “Helmut Federle’s Painting and Its Role in Recent Swiss Architecture”. Arquitetura Revista 9, no. 1 (August 2, 2013): 62–71. Accessed October 22, 2026. https://revistas.unisinos.br/index.php/arquitetura/article/view/arq.2013.91.06.