1. Problems and results on 3-chromatic hypergraphs and some related questions;Erdös,1974
2. Neuer Beweis eines Tutteschen Satzes;Gallai;Magyar Tud. Akad. Mat. Kut. Int. Közl.,1963
3. Partition covers and blocking sets in hypergraphs;Gyárás;MTA SZTAKI Tanulmányok 71/1977,1977
4. On the minimax theorems of combinatorics;Lovász;Mat. Lapok,1975
5. Critical hypergraphs and intersecting set-pair systems;Tuza;J. Combin. Theory Ser. B,1985