De Jorge Huertas V. Sketching Structural Lightness: Frei Otto and the Treehouses (1959-1987). diségno [Internet]. 2026 Apr. 1 [cited 2026 Apr. 2];(17):155-68. Available from: https://disegno.unioneitalianadisegno.it/index.php/disegno/article/view/857