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. 156-1801986
The dimension of a quasi-hereditary algebra
In: Topics in Algebra. 1: Rings and representations of algebras, Jg. 26,1, S. 263-2711990