@article{FPM_2015_20_3_a12,
     author = {T. \v{S}ukilovi\'c},
     title = {Isometry groups of $4$-dimensional nilpotent {Lie} groups},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {257--271},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_2015_20_3_a12/}
}