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  • Title page

    Binary polyhedral groups and Euclidean diagrams

    Happel, Dieter ; Preiser, Udo ; Ringel, Claus Michael
    In: Manuscripta mathematica, Vol. 31 Issue 1-3, page 317-329
    1980
  • Title page

    A bypass of an arrow is sectional

    Crawley-Boevey, William ; Happel, Dieter ; Ringel, Claus Michael
    In: Archiv der Mathematik, Vol. 58 Issue 6, page 525-528
    1992
  • Title page

    Construction of tilted algebras

    Happel, Dieter ; Ringel, Claus Michael ; Auslander, Maurice (Ed.) ; Lluis, Emilo (Ed.)
    In: Representations of Algebras. Proceedings of the Third International Conference on Representations of Algebras, held in Puebla, Mexico, August 4 - 8, 1980, Vol. 903, page 125-167
    1981
  • Title page

    The derived category of a tubular algebra

    Happel, Dieter ; Ringel, Claus Michael ; Dlab, Vlastimil (Ed.) ; Gabriel, Peter (Ed.) ; Michler, Gerhard (Ed.)
    In: Representation Theory I: Finite dimensional algebras: Proceedings of the Fourth International Conference on Representations of Algebras, held in Ottawa, Canada, August 16-25, ... Part 1, Vol. 1177, page 156-180
    1986
  • Title page

    Directing projective modules

    Happel, Dieter ; Ringel, Claus Michael
    In: Archiv der Mathematik, Vol. 60 Issue 3, page 237-246
    1993
  • Title page

    Tilted algebras

    Happel, Dieter ; Ringel, Claus Michael
    In: Transactions of the American Mathematical Society, Vol. 274 Issue 2, page 399-443
    1982
  • Title page

    Vinberg's characterization of Dynkin diagrams using subadditive functions with application to DTr-periodic modules

    Happel, Dieter ; Preiser, Udo ; Ringel, Claus Michael ; Dlab, Vlastimil (Ed.) ; Gabriel, Peter (Ed.)
    In: Representation Theory II: Proceedings of the Second International Conference on Representations of Algebras, Ottawa, Carleton University, August 13-25, 1979: No. 2, Vol. 832, page 280-294
    1980