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Koschorke, U. (Ulrich), 1941- (Personal Name)
Topology Sympos., University of Siegen, 1979. Topology Symp. ... 1980 (a.e.) t.p. (U. Koschorke) t.p. verso (Ulrich Koschorke; Mathematik V, Univ.-Gesamthochschule Siegen) CIP data sheet (b. 2/1/41)