1. Separation of dominating sets in a graph;Benzaken;Annals of Discrete Mathematics,1978
2. Measuring social distances;Bogardus;Journal of Applied Sociology,1925
3. Set packing and threshold graphs;Chvátal;University of Waterloo Research Report,1973
4. On a digraph dimension;Cogis;Annals of Discrete Mathematics,1980
5. Ferrers digraphs and threshold graphs;Cogis;Discrete Mathematics,1982