@article{ZNSL_2016_452_a5,
     author = {D. D. Kiselev},
     title = {On ultrasolvability of $p$-extensions of an abelian group by a~cyclic kernel},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {108--131},
     publisher = {mathdoc},
     volume = {452},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2016_452_a5/}
}