@article{DAN_1973_209_2_a1,
     author = {P. P. Baryshovets},
     title = {Finite {non-Abelian} groups in which the derived groups of all proper subgroups are complemented},
     journal = {Doklady Akademii Nauk},
     pages = {269--271},
     publisher = {mathdoc},
     volume = {209},
     number = {2},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_209_2_a1/}
}