On the Deviation and the Type of a Cohen-Macaulay Ring. J. Herzog; E. Kunz — 1973 Manuscripta mathematica
Maximally generated Cohen-Macaulay modules. B. Ulrich; J. Herzog; J.P. Brennan — 1987 Mathematica Scandinavica
Sagbi bases with applications to blow-up algebras. G. Valla; J. Herzog; A. Conca — 1996 Journal für die reine und angewandte Mathematik