A Bódva és Sajó közötti barnakőszénterület földtani viszonyai

Kálmán Balogh worked for 4 months re-mapping the northern partof the so-called 'brown coal basin' in Borsod area, from the settlements Múcsony to Rudabánya and Putnok to Edelény. The research report was published in the Geological Bulletin in 1949.