Посилання:Groups which are isomorphic to their subgroups with non-modular subgroup lattice / M. De Falco, C. Musella // Algebra and Discrete Mathematics. — 2006. — Vol. 5, № 1. — С. 41–50. — Бібліогр.: 26 назв. — англ.
This paper describes the structure of groups G
containing proper subgroups with non-modular subgroup lattice
and such that all such subgroups are isomorphic to G.