Authors: Colombo, Umberto --- Jaumotte, A. --- Kennedy, E. --- Martinez, C. Lopez --- Popp, M. --- et al. Reece, C. --- Schopper, H. --- Spitz, E. --- Troyon, F.
ISBN: 287263052X Publisher: Brussels Commission of the European Communities

Authors: Albrecht, G. --- Bauer, H. --- Bentz, F. --- Bünger, H. --- Frahm, J. --- et al. Hofmann, E. --- Popp, M. --- Quast, H. --- Wittwer, M. --- Zeiler, K.
Year: 1935 Publisher: Wien J. Springer