1. Generalized latin rectangles;Andersen,1979
2. Balanced schedules;Werra;Information J.,1971
3. Equitable colorations of graphs;Werra;Rev. Franc. Inf. Rech. Oper.,1971
4. A few remarks on chromatic scheduling;Werra,1975
5. On a particular conference scheduling problem;Werra;Information J.,1975