GEOPHYSICAL OBSERVATORY REPORTS, YEAR 1988-1989 - NAGYCENK GEOPHYSICAL OBSERVATORY (Sopron, 1993)
GEOPHYSICAL OBSERVATORY REPORTS OF THE GEODETIC AND GEOPHYSICAL RESEARCH INSTITUTE OF THE HUNGARIAN ACADEMY OF SCIENCES YEAR 1988-1989 OBSERVATORY OF NAGYCENK SOPRON 1993 MAGYAR TUDOMÁNYOS AKADÉMIA KÖNYVTÁRA