1. Finite regularity and Koszul algebras;Avramov;Amer. J. Math.,2002
2. Koszul algebras, Veronese subrings and rings with linear resolutions;Backelin;Rev. Roumaine Math. Pures Appl.,1985
3. Cohen–Macaulay ordered sets;Baclawski;J. Algebra,1980
4. Topological methods;Björner,1995
5. On lexicographically shellable posets;Björner;Trans. Amer. Math. Soc.,1983