@article{MZM_1968_4_1_a8,
     author = {F. N. Liman},
     title = {2-Groups with normal noncyclic subgroups},
     journal = {Matemati\v{c}eskie zametki},
     pages = {75--83},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1968_4_1_a8/}
}