TY  - JOUR
AU  - J. Pach
AU  - E. Szemeredi
AU  - W. Steiger
TI  - An Upper Bound on the Number of Planar K-Sets.
JO  - Discrete & computational geometry
PY  - 1992
SP  - 109
EP  - 124
VL  - 7
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DCG_1992__7_4_131184/
ID  - DCG_1992__7_4_131184
ER  -