IIL30IL30de Otto, FreiMateriasLightweight constructionSuspension RoofsTentsEdiciones (1)IL30 (1984)Institut für leichte Flächentragwerke · mulMás obras de Otto, FreiAA conversation with Frei OttoA conversation with Frei OttoTTensile structuresTensile structuresTTensile structuresTensile structures