Braehmer, Otto
[Contributor];
Büsing, F. W.
[Contributor];
Osthoff, Georg
[Contributor];
Schultze, Rudolf
[Contributor];
Knauff, Max
[Contributor];
Kulenkampff, Diedrich
[Contributor];
Helbig, Karl Ernst
[Contributor];
Weyl, Theodor
[Contributor];
Weyl, Theodor
[Editor]