GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1977 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1978)
1977
GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETICAL AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1977 OBSERVATORY OF NAGYCENK REPORT ON I. EARTH CURRENTS II. GEOMAGNETISM III. ATMOSPHERIC ELECTRICITY IV. IONOSPHERE EDITED BY THE DIRECTOR SOPRON 19 7 8