@article{PFMT_2012_2_a15,
     author = {V. N. Tyutyanov and P. V. Bychkov},
     title = {Simple non abelian group with $D_\pi$ {Schmidt} subgroups},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {95--98},
     publisher = {mathdoc},
     number = {2},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2012_2_a15/}
}