Investigations of Bonding in Some Oxide Minerals by Oxygen Ka Emission Spectroscopy

Die Kontinentaldrift - Hypothese aus Heutiger Scht

Einige Permische Fusuliniden Aus dem Irak

Notes on Cretaceous Fossils from Afghanestan and Khorasan

L' Eocene de la Region de Tafresh ( Nord- Ouest de l' Iran Central )