Uber die Entwicklung der Hetero-steginen im Torton des Wiener Beckons. Anz ost Akad Wiss, 89 1954: 110-118. [Zoological Record Volume 91]
The genus Heterostegina in the Upper Tertiary of Europe. Contributions from the Cushman Foundation, 5(3) 1954: 108-127. [Zoological Record Volume 91]