Published in Sitzungsberichte Der Gesellschaft Naturforschender Freunde Zu Berlin, in 1919, in volume 1919, pages 35-38

Created: 2013-04-04, modified: 2013-04-04

Published in Sitzungsberichte der Gesellschaft Naturforschender zu Berlin, in 1919, in volume 1919, pages 111-127

Created: 2012-12-04, modified: 2012-12-04

Published in Sitzungsberichte Der Gesellschaft Naturforschender Zu Berlin, in 1919, in volume 1919, pages 146-153

Created: 2012-12-04, modified: 2012-12-04

Published in Sitzungsberichte Der Gesellschaft Naturforschender Freunde Zu Berlin, in 1919, in volume 1919, pages 189-196

Created: 2013-04-04, modified: 2015-10-01

Published in Sitzungsberichte der Gesellschaft Naturforschender zu Berlin, in 1919, in volume 1919, pages 347-374

Created: 2012-12-04, modified: 2012-12-04