GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1973 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1974)
1973
GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETICAL AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1973 OBSERVATORY OF NAGYCENK REPORT ON I. EARTH CURRENTS II. GEOMAGNETISM III. ATMOSPHERIC ELEC.TRICITY IV. IONOSPHERE EDITED BY THE DIRECTOR SOPRON 1074