@article{MASLO_1976__26_2_a1,
     author = {Harborth, Heiko},
     title = {Parity of numbers of crossings for complete $n$-partite graphs},
     journal = {Mathematica slovaca},
     pages = {77--95},
     publisher = {mathdoc},
     volume = {26},
     number = {2},
     year = {1976},
     mrnumber = {0439671},
     zbl = {0322.05106},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1976__26_2_a1/}
}