Titanium placers in upper devonian- lower carboniferous rocks of Alborz coal basin, north Iran

/ V. Abramov and I. Govorov(Govorov, I.)

Phosphate research in Iran: economic study of the world ohosphate industry and market

/ Position of Iran in the worldwide con text()

Estimation of the potential phosphate resources in Iran

/ ()

Die Geologie der guschagruppe im St. Galler oberland

/ Von Hannes Richter()

The seismicity of Iran the Silakhor, Lurestan, earthqake of 23rd. January,1909

/ (Moinfar,A.)