Ökologische Wassergüte-Untersuchungen in Stauhaltungen des UntermainsWilli ZieglerAgotado4,3Notifícame
Papers on conodonts and ordovician to triassic conodont stratigraphyWilli ZieglerAgotado4,3Notifícame
Conodont biochronology, biofacies, taxonomy, and event stratigraphy around Middle Frasnian Lion Mudmound (F2h), Frasnes, BelgiumWilli ZieglerAgotado4,3Notifícame