Dovzhenko S. A.
Ukr. Mat. Zh. - 1999. - 51, № 10. - pp. 1324–1333
We describe primary graded groups (in particular, locally graded, RN-groups) with complementable non-Frattini subgroups.
Ukr. Mat. Zh. - 1999. - 51, № 6. - pp. 854–855
We describe finite groups G every subgroup of which that does not belong to the Frattini subgroup ϕ (G) has a complement.