Elementary concepts of topology /
Alexandroff, Paul.
Elementary concepts of topology / Paul Alexandroff, with a preface by David Hilbert, translated by Alan E. Farley. - New York : Dover Publications, c1961. - 63 p. : ill.
Translation of: Einfachste grundbegriffe der topologie.
Topology.
Elementary concepts of topology / Paul Alexandroff, with a preface by David Hilbert, translated by Alan E. Farley. - New York : Dover Publications, c1961. - 63 p. : ill.
Translation of: Einfachste grundbegriffe der topologie.
Topology.