1. Isler H. Personal correspondence to Prof. D.P. Billington. In: gta Archive, Eidgenössische Technische Hochschule, Estate of Heinz Isler. Zurich; 2002.
2. Isler H. Personal correspondence to Prof. F. Frey. In: gta Archive, Eidgenössische Technische Hochschule, Estate of Heinz Isler (Swimming pool Heimberg 217-0370). Zurich; 1993.
3. Reverse engineering of free form shell structures; from point cloud to finite element model;Eigenraam;Heron,2016
4. Ramm E, Schunck E. Heinz Isler, Schalen: Katalog zur Ausstellung. vdf, Hochsch.-Verlag an der ETH; 1986.
5. Chilton J, Isler Heinz. The engineer's contribution to contemporary architecture. Thomas Telford; 2000.