Lamprecht, Karl; Marcks, Erich; Seeliger, Gerhard; Buchholz, Gustav; Brandenburg, Erich; Salomon, Felix; Goetz, Walter: Brief an Prof. Marcks, Prof. Seeliger, Prof. Buchholz, Dr. Brandenburg, Dr. Salomon, Dr. Goetz. L[eipzig], 19.5.[18]96