@article{ASUO_2016_XXIV_2_a23,
     author = {A. Targonskii},
     title = {Extremal problem on (2n, 2m-1) - system of points on
                            rays},
     journal = {Analele Universit\u{a}\c{t}ii "Ovidius" Constan\c{t}a Seria Matematic\u{a}},
     publisher = {mathdoc},
     volume = {XXIV},
     number = {2},
     year = {2016},
     url = {http://geodesic.mathdoc.fr/item/ASUO_2016_XXIV_2_a23/}
}