Ökologische Wassergüte-Untersuchungen in Stauhaltungen des UntermainsWilli ZieglerEsaurito4,3Avvisami
Conodont biochronology, biofacies, taxonomy, and event stratigraphy around Middle Frasnian Lion Mudmound (F2h), Frasnes, BelgiumWilli ZieglerEsaurito4,3Avvisami