1. Färbung von Graphen, deren sämtlich bzw. deren ungerade Kreise starr sind;Berge;Z. Martin Luther Univ. Halle-Wittenberg,1961
2. On minimal cutsets in P5-free minimal imperfect graphs;Barré;Discrete Math.,2001
3. On minimal imperfect graphs without P5;Barré;Discrete Appl. Math.,1999
4. Star-cutsets and perfect graphs;Chvátal;J. Combin. Theory (B),1985
5. Transformations which preserves perfectness and H-perfectness of graphs;Fonlupt;Ann. Discrete Math.,1982