Tovbin A V

Publications in Math-Net.Ru

1. A generalization of Bertrand's theorem on the theory of substitution groups
   
   Rec. Math. [Mat. Sbornik] N.S., 10(52):1-2 (1942),  7–10
2. On the structure of groups containing alternative or symmetric subgroups
   
   Rec. Math. [Mat. Sbornik] N.S., 10(52):1-2 (1942),  3–6