Дюмін Н. В.
Укр. мат. журн. - 1964. - 16, № 1. - С. 3-12
The author considers the matrix linear groups described in 13], namely partition groups. The problem was to distinguish in the complete linear group, given as invariant, the subgroups which, with proper choice of basis, become partition groups. Three solutions of the problem are given.
Укр. мат. журн. - 1961. - 13, № 3. - С. 39-45