Eigenvalues of Coxeter transformations and the Gelfand-Kirillov dimension of the preprojective algebras
In: Proceedings of the American Mathematical Society, Vol. 83 Issue 2, page 228-232
Every semiprimary ring is the endomorphism ring of a projective module over a quasi-hereditary ring
In: Proceedings of the American Mathematical Society, Vol. 107 Issue 1, page 1-5