513.83 Aca A Academia de Ciencias de Checoslovaquia General topology and its relations to modern analysis and algebra; proceedings of the Symposium held in Prague in Septiembre, 1961. Prague, Pub. House of the Czechoslovak Academy of Sciences, 1962 363 p. diagrs. 25 cm BibliografĂ­a al final de los capĂ­tulos WorldCat