Acta Geodaetica, Geophysica et Montanistica Hungarica 25. (1990)
1-2. szám
ACTA GEODAETICA, GEOPHYSICA et MONTANISTICA A Quarterly Journal of the Hungarian Academy of Sciences EDITOR-IN-CHIEF F MARTOSt ASSOCIATE EDITOR J SOMOGYI EDITOR J VERÖ EDITORIAL BOARD A ÀDÀM, GY BARTA, P BIRÓ, S DOLESCHALL, L KAPOLYI, F KOVÁCS, A MESKÓ, F STEINER, J ZAMBÓ VOLUME 25 AKADÉMIAI KIADÓ, BUDAPEST 1990