W. Haase, and W. Sobek. Statusseminar Forschung für Energieoptimiertes Bauen (EnOB), 30. Juni - 2. Juli 2009, Würzburg, page 19--26. Jülich, Forschungszentrum Jülich, (2009)
W. Haase, M. Husser, and W. Sobek. 2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM), July 3-7, 2017, Munich, page 929--933. (2017)
F. Muhs, Y. Klett, and P. Middendorf. 7th International Meeting on Origami in Science, Mathematics and Education (OSME), September 5-7, 2018, Oxford, UK, 4, page 1043--1058. (2018)