@article{PDM_2015_1_a3,
     author = {M. A. Pudovkina and A. V. Toktarev},
     title = {Bounds for the number of rounds with impossible differences in generalized {Feistel} schemes},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {37--51},
     publisher = {mathdoc},
     number = {1},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2015_1_a3/}
}