@article{ZNSL_2015_435_a6,
     author = {M. Muzychuk and I. Ponomarenko},
     title = {On {Schur} $2$-groups},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {113--162},
     publisher = {mathdoc},
     volume = {435},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2015_435_a6/}
}