@article{AL_1990_29_6_a8,
     author = {S. Andreadakis and C. K. Gupta},
     title = {Automorphism groups of free metabelian nilpotent groups},
     journal = {Algebra i logika},
     pages = {746--751},
     publisher = {mathdoc},
     volume = {29},
     number = {6},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1990_29_6_a8/}
}