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Module categories without short cycles are of finite typeHAPPEL, D; SHIPING LIU.Proceedings of the American Mathematical Society. 1994, Vol 120, Num 2, pp 371-375, issn 0002-9939Article

A proof of the generalized Nakayama conjecture for algebras with J^2l+1=0 and A/J^l representation finiteDRÄXLER, P; HAPPEL, D.Journal of pure and applied algebra. 1992, Vol 78, Num 2, pp 161-164, issn 0022-4049Article