GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1970 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1971)
1970
J 316.464 GEOPHYSICAL ОBSERVATORY REPORTS OF THE GEODETICAL AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1970 OBSERVATORY OF NAGYCENK SOPRON 1971