The derived category of a tubular algebra
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, Jg. 1177, S. 156-180Hereditary artinian rings of finite representation type
In: Representation Theory II. Proceedings of the Second International Conference on Representations of Algebras, Ottawa, Carleton University, August 13-25, 1979: No. 2, Jg. 832, S. 232-241The preprojective algebra of a modulated graph
In: Representation Theory II. Proceedings of the Second International Conference on Representations of Algebras, Ottawa, Carleton University, August 13-25, 1979: No. 2, Jg. 832, S. 216-231Report on the Brauer-Thrall conjectures: Rojter's theorem and the theorem of Nazarova and Rojter (on algorithms for solving vectorspace problems. I)
In: Representation Theory I. Proceedings of the Workshop on the Present Trends in Representation Theory, Ottawa, Carleton University, August 13-18, 1979: No. 1, Jg. 831, S. 104-136The representation type of local algebras
In: Representations of Algebras. Proceedings of the International Conference Ottawa 1974, Jg. 488, S. 282-305Tame algebras: (on algorithms for solving vector space problems, II)
In: Representation Theory I: Proceedings of the Workshop on the Present Trends in Representation Theory, Ottawa, Carleton University, August 13-18, 1979: No. 1, Jg. 831, S. 137-287Vinberg's characterization of Dynkin diagrams using subadditive functions with application to DTr-periodic modules
In: Representation Theory II: Proceedings of the Second International Conference on Representations of Algebras, Ottawa, Carleton University, August 13-25, 1979: No. 2, Jg. 832, S. 280-294