@article{IVM_1995_6_a8,
     author = {Noǐenshvander and D.},
     title = {Universal laws on simply connected nilpotent {Lie} groups of class $2$},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {68--73},
     year = {1995},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1995_6_a8/}
}