GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1974 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1975)
1974
GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETICAL AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1974 OBSEKVATORY OF NAGYCENK REPORT ON I. EARTH CURRENTS II. GEOMAGNETISM III. ATMOSPHERIC ELECTRICITY IV. IONOSPHERE EDITED BY THE DIRECTOR SOPRON 1975