@article{DA_2009_16_5_a5,
     author = {I. Yu. Mogilnykh},
     title = {On nonexistence of some perfect 2-colorings of {Johnson} graphs},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {52--68},
     publisher = {mathdoc},
     volume = {16},
     number = {5},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2009_16_5_a5/}
}