Published in Sitzungsberichte Der Gesellschaft Naturforschender Freunde Zu Berlin, in 1906, in volume 1906, pages 37-49

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

Published in Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin, in 1906, in volume 1906, pages 143-148

Created: 2013-08-23, modified: 2013-08-23