GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1970 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1971)
1970
GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETICAL AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1970 OBSERVATORY OF NAGYCENK REPORT ON I. EARTH CURRENTS II. GEOMAGNETIS M III. ATMOSPHERIC ELECTRICITY IV. IONOSPHERE EDITED BY THE DIRECTOR SOPRON 1971