4 short quotes of Max Pechstein, 1918, in Aus dem Palau-Tagebuch, 'Das Kunstblatt' 2, no. 6, p. 179; as cited in 'The Revival of Printmaking in Germany', I. K. Rigby; in German Expressionist Prints and Drawings - Essays Vol 1.; published by Museum Associates, Los Angeles County Museum of Art, California & Prestel-Verlag, Germany, 1986, p. 43https://en.wikiquote.org/wiki/Max_Pechstein