por International Congress of Mathematicians (1974 : Vancouver).
por International Congress of Mathematicians (1978 : Helsinki).
por International Congress of Mathematicians (1998 : Berlin).
por International Congress of Mathematicians (2002 : Beijing, China).
por International Congress of Mathematicians (2006 : Madrid, España).
por International Congress of Mathematicians (1983 : Warszawa) | Ciesielski, Zbigniew [, ed.] | Olech, Czeslaw [, coed.] | International Mathematical Union | International Congress of Mathematicians (1982 : Warszawa).