GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1974 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1975)
1974
ЪАСМ-бЦ. GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETICAL AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1974 OBSERVATORY OF NAGYCENK SOPRON 1975