@article{BingVischer, author = {Bing, R. and Vischer, A. L.}, title = {Some remarks on the psychology of internment, based on the observation of prisoners of war in Switzerland}, series = {The Lancet (April 26, 1919), 7 pp.}, journal = {The Lancet (April 26, 1919), 7 pp.}, language = {en} } @misc{Fromm, author = {Fromm, Erich}, title = {Excerpt of Marx, K., 1919: Capital. Volume I, Chicago (Charles H. Kerr \& Company) 1919.}, number = {excerpt / Exzerpt}, language = {en} } @misc{Fromm, author = {Fromm, Erich}, title = {Excerpt of Landauer, G., 1919a: Briefe aus der franz{\"o}sischen Revolution, Frankfurt a. M. (Literarische Anstalt R{\"u}tten \& Loening) 1919.}, number = {excerpt / Exzerpt}, language = {de} }