Sjezdy JČSMF a JSMF - Poprad 5. - 7. 10. 1978 [obrázky]. (Czech) [Congresses of the Union of Czechoslovak (and Slovak) Mathematicians and Physicists - Poprad 5. - 7. 10. 1978 [pictures]]. Pokroky matematiky, fyziky a astronomie, vol. 24 (1979), issue 4, pp. [210b]-[210d]