@article{ZNSL_1991_191_a11,
     author = {A. I. Skopin},
     title = {Basises of free metabelian and transmetabelian groups},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {126--139},
     publisher = {mathdoc},
     volume = {191},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1991_191_a11/}
}