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[Lecture Notes in Mathematics] Arbeitstagung Bonn 1984 Volume 1111 || A counterexample in 3-space to a conjecture of H. Hopf
Hirzebruch, Friedrich, Schwermer, Joachim, Suter, SilkeVolume:
10.1007/BF
Year:
1985
Language:
english
DOI:
10.1007/BFb0084601
File:
PDF, 502 KB
english, 1985