%0 Journal Article %A Gundlach, Karl-Bernhard %T Multiplier systems for Hilbert's and Siegel's modular groups %J Glasgow mathematical journal %D 1985 %P 57-80 %V 26 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006078/ %R 10.1017/S0017089500006078 %F 10_1017_S0017089500006078