A regularity criterion for semigroup rings. Bruns, W.; Gubeladze, J. — 1999 Georgian Mathematical Journal
Combinatorial invariance of Stanley-Reisner rings. Bruns, W.; Gubeladze, J. — 1996 Georgian Mathematical Journal
Normal polytopes, triangulations, and Koszul algebras. W. Bruns; J. Gubeladze; N. Viêt — 1997 Journal für die reine und angewandte Mathematik