@article{DA_2011_18_6_a2,
     author = {E. V. Konstantinova and A. N. Medvedev},
     title = {Cycles of lentgth~9 in the {Pancake} graph},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {33--60},
     publisher = {mathdoc},
     volume = {18},
     number = {6},
     year = {2011},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2011_18_6_a2/}
}