Manganiferous volcanogeno-sedimentary complex of Ordovician of the Southers Urals and Southern Mugodzhar

Gavilov, A.A.

Manganiferous volcanogeno-sedimentary complex of Ordovician of the Southers Urals and Southern Mugodzhar - 1 - 112 - Grande Encyclopédie de la Belgique et du Congo .