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Äquivalenzklassen von Gruppenbeschreibungen, Identitäten und einfacher Homotopietyp in niederen Dimensionen. (German) Zbl 0433.57003
Homological group theory, Proc. Symp., Durham 1977, Lond. Math. Soc. Lect. Note Ser. 36, 291-326 (1979).

MSC:
57M20 Two-dimensional complexes (manifolds) (MSC2010)
57M05 Fundamental group, presentations, free differential calculus
57Q10 Simple homotopy type, Whitehead torsion, Reidemeister-Franz torsion, etc.
20F05 Generators, relations, and presentations of groups