@article{DCG_1992__7_4_131183,
     author = {Y.S. Kupitz},
     title = {On a {Generalization} of the {Gallai-Sylvester} {Theorem.}},
     journal = {Discrete & computational geometry},
     pages = {87--104},
     publisher = {mathdoc},
     volume = {7},
     number = {4},
     year = {1992},
     zbl = {0765.51002},
     url = {http://geodesic.mathdoc.fr/item/DCG_1992__7_4_131183/}
}