|  |  | 
| 1996 | ||
|---|---|---|
| 2 | EE | Paul Erdös, Tibor Gallai, Zsolt Tuza: Covering and independence in triangle structures. Discrete Mathematics 150(1-3): 89-101 (1996) | 
| 1992 | ||
| 1 | EE | Paul Erdös, Tibor Gallai, Zsolt Tuza: Covering the cliques of a graph with vertices. Discrete Mathematics 108(1-3): 279-289 (1992) | 
| 1 | Paul Erdös | [1] [2] | 
| 2 | Zsolt Tuza | [1] [2] |