GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1971 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1972)
1971
3fG. LyG*/ GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETICAL AMD GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1971 OBSERVA'l OKY OF NAGYCENK SOPRON 1972