"I started my professional career as an assistent at the department of geology in Bratislava under the leadership of Prof. D. Andrusov. During first years I have studied various geological units of the Western Carpathians, which period yielded in co-authorship of a sheet of general geological map in the scale 1:200 000. In the time-period of 1960/61 I acted as expert in the frame of contract between Czechoslovakia and Indonesia devoted to raw materials field survey and consequently construction of a cement plant on the Sulawesi island. Returning home I have changed position to newly established department of petrology and I was involved into the problemastic of ophiolites (IGCP/UNESCO Nr. 39), metabasites, basic volcanics, Upper Mantle xenoliths in Late Tertiary CA volcanics and other subjects. Among outputs of prefessional activities authorship/co-authorship of 3 books and more than 100 papers (some of them, namely those in the field of our interests, you have in your plastic bags) should be quoted. In the past/at present I am the chairman/member of various inland professional gremia and commissions. I am full-duty professor at Faculty of Natural Sciences of Comenius University, Bratislava."

"I have position of professor at the University of Vienna - Institut für Ur- und Frühgeschichte and I deal with Paleolithic, Neolithic and the Bronze Age in central Europe. My habilitation was about the Middle Neolithic "Kreisgrabenanlagen", i. e. circular ditch systems/enclosures, which occure in western Slovakia, lower Austria, southern Moravia. lower Bavaria, middle and northern Bohemia as well as former Eastern Germany. My last projects had been excavations on an Upper Palaeolithic site in northern lower Austria (Alberndorf im Pulkautal). 15 years of excavations on "Kreisgraben" I conduct a project of magnetic survey and of Celtic glass analysis in Austria. My lectures at the University/Institute deal with Praehistory - especially Stone Ages und Bronze Age."