@article{DCG_1992__7_4_131176,
     author = {F.R.K. Chung and E. Szemeredi and W.T. Trotter},
     title = {The {Number} of {Different} {Distances} {Determined} by a {Set} of {Points} in the {Euclidean} {Plane.}},
     journal = {Discrete & computational geometry},
     pages = {1--12},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {1992},
     zbl = {0755.52005},
     url = {http://geodesic.mathdoc.fr/item/DCG_1992__7_4_131176/}
}