GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1980 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1981)
1980
GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETIC AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1980 OBSERVATORY OF NAGYCENK REPORT ON I. EARTH CURRENTS II. GEOMAGNETISM III. ATMOSPHERIC ELECRICITY IV. IONOSPHERE EDITED BY THE DIRECTOR SOPRON