%L acta24419 %O Bibliogr.: 40. p. %K KĹzettan, ĂsvĂĄnytan, FĂśldtan %D 1956 %J Acta mineralogica-petrographica %A Grasselly Gyula %A KlivĂŠnyi Ăva %I University of Szeged, Department of Mineralogy, Geochemistry and Petrology %P 33-40 %V 9 %T On the stability of the Mn3O4 %C Szeged