Author(s): Koigen, David

Author(s): Kapp; Schmitt, Carl; Stampfer, Friedrich; Hertz, Friedrich; Dovifat, Emil; Voegelin, E.; Tönnies, Ferdinand; Eckardt, Hans von; Brinkmann, Carl

Author(s): Hellpach, Willy

Author(s): Hertz, Friedrich; Gierlichs, Willy; Sombart, Werner; Tritsch, Walter; Busse, Kurt H.; Prinz, Arthur; Nadler J.; Eulenburg, Franz; Tönnies, Ferdinand

Author(s): Breysig, Kurt

Author(s): Nadler, Josef

Author(s): Stoltenberg, Hans Lorenz

Author(s): Tönnies, Ferdinand

Author(s): Bortkiewicz, Ladislaus von; Tönnies, Ferdinand; Günther, Adolf; Busse, Kurt H.; Rumpf, Max; Heberle, R.; Jahn, Georg; Kaysenbrecht

Author(s): Aubin, Hermann