Acta Physica Academiae Scientiarum Hungaricae 35. (1974)
1974 / 1-4. szám
THIS VOLUME OF ACTA PHYSICA IS DEDICATED TO PROF. I. KOVÁCS ON THE OCCASION OF HIS 60th BIRTHDAY
THIS VOLUME OF ACTA PHYSICA IS DEDICATED TO PROF. I. KOVÁCS ON THE OCCASION OF HIS 60th BIRTHDAY