Reference

Tosiyuki Kurihara, K. Tsukada, Shige Otoh, N. Manchuk, A. Matsumoto, Gon. Sersmaa, C. Minjin (2011): Late Silurian to Devonian pelagic facies in the Khangai-Khentei belt, Central Mongolia (Central Asian Orogenic Belt) and its radiolarian age. – Berichte des Institutes für Geologie und Paläontologie der Karl-Franzens-Universität Graz – 16: 66 - 67.