1. Über unorganische haloidverindungen, die sich wie radicale verhalten;Blomstrand;J. Für Prak. Ch.,1859
2. On the structure of complex compounds of bivalent molybdenum I;Brosset;Ark. Kemi Mineral. Geol., Band A,1945
3. On the structure of complex compounds of bivalent molybdenum II;Brosset;Ark. Kemi Mineral. Geol., Band A,1945
4. A molybdenum polynuclear complex as small metallic particles;Okumura;Bull. Chem. Soc. Jpn.,1982
5. Gmelin Handbook, Suppl. Vol. B5, pp. 250, 251