1. Design Theory;Beth,1985
2. Three-graphs without two triples whose symmetric difference is contained in a third;Bollobás;Discrete Math.,1974
3. Extremal Graph Theory;Bollobás,1978
4. Combinatorics;Bollobás,1986
5. Uniform hypergraphs with no blocks containing the symmetric difference of any two other blocks;de Caen,1985