@article{DAN_1994_339_6_a1,
     author = {Yu. I. Merzlyakov},
     title = {Equisubgroups of unitriangular groups: a criterion for},
     journal = {Doklady Akademii Nauk},
     pages = {732--735},
     publisher = {mathdoc},
     volume = {339},
     number = {6},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_339_6_a1/}
}