Published in Jahrbuecher Des Vereins Fuer Naturkunde Wiesbaden, in 1906, in volume 59, pages 249-256

Published in Jahrb. nassua. Ver. Naturk., in 1906, in volume 59, pages 257-278

Published in Jahrbuecher des Vereins fuer Naturkunde Wiesbaden, in 1906, in volume 59, pages 345-351