1. Distance-preserving subgraphs of hypercubes;Djocovic;J. Combin. Theory Ser. B,1973
2. On cubical graphs;Garey;J. Combin. Theory Ser. A,1973
3. Computers and Intractability: A guide to the theory of NP-Completeness;Garey,1979
4. Embedding graphs in undirected and directed cubes;Havel,1981
5. Embedding the dichotomic tree into the cube;Havel;Casopis Pest. Mat.,1972