Quantitative Untersuchungen an Rhaetina gregaria (Suess) (Brachiopoda)Published in Zitteliana, in 1974, in volume 3, pages 3-35Quantitative Untersuchungen an Perisphinctidae (Ammonoidea) des untersten Unterkimmeridgium der Fränkischen Alb (Bayern)Published in Zitteliana, in 1974, in volume 3, pages 37-124
Quantitative Untersuchungen an Perisphinctidae (Ammonoidea) des untersten Unterkimmeridgium der Fränkischen Alb (Bayern)Published in Zitteliana, in 1974, in volume 3, pages 37-124