Miquel Martí i Pol
Risø International Symposium on Metallurgy and Materials Science (2nd 1981)
G. I. Pshenichnov
B. G. Shelegeda
Kozma, Tamás.
L. Erdmane
Ilse Lacoste
Hans W. Stoermer
Jánszky, Lajos.
ʻAṭīyah Ṣaqr
Jiří Alter
International Colloquium on the Conceptual Framework of Family Studies (1975 Banff, Alta.)
ISA Conference (International Schools Association) (30th 1981 Wersen, Germany and Hamburg, Germany)
Zenobiusz Kozik
