@article{GMJ_2003__10_1_51412,
     author = {Kharazishvili, A.},
     title = {On maximal ot-subsets of the {Euclidean} plane.},
     journal = {Georgian mathematical journal},
     pages = {127--131},
     year = {2003},
     volume = {10},
     number = {1},
     zbl = {1065.52002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/GMJ_2003__10_1_51412/}
}