Quote
M. Feldmann, M. Kuhnhenne, M. Brieden, S. Rexroth, F. Deininger, H. Hachul, J. Bach, H. Rößling, T. Ummenhofer, T. Misiek, and H. Krüger, "Multidimensional energy-optimized building envelopes in lightweight steel construction for industrial and commercial construction," Stahlbau, vol. 80, no. 10, pp. 734-739, 2011.