@article{ZNSL_2004_316_a3,
     author = {S. A. Evdokimov and I. N. Ponomarenko},
     title = {On the vertex connectivity of a~relation in association scheme},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {55--62},
     year = {2004},
     volume = {316},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2004_316_a3/}
}