Partitions and covers of rectilinear regions. In: Frankl P, Füredi Z, Katona GOH, Miklós D, editors. Extremal problems for finite sets.; 1994. p. 289-304. (Bolyai Society mathematical studies; no 3).
Extremal Hypergraph Problems And Convex Hulls. Combinatorica. 1985;5(1):11-26.
Polytopes determined by hypergraph classes. European Journal of Combinatorics. 1985;6(233-243).
Intersecting Sperner Families And Their Convex Hulls. Combinatorica. 1984;4(1):21-34.
On the number of maximal dependencies in a data base relation of fixed order. Discrete Mathematics. 1980;30(2):83-8.
If the intersection of any r sets has a size 6= r ¡ 1. Studia Scientiarum Mathematicarum Hungarica. 1979;14:47-9.