Bondarenko L.N., Sharapova M. L. «Euler's numbers on sets of permutations and analogues of wilson's theorem» // Applied Discrete Mathematics 2014. №7 (Приложение) C.9-11
Bondarenko L.N., Sharapova M. L. «Euler's numbers on sets of permutations and analogues of wilson's theorem» // 2014. №7 C.9-11
