@article{AL_1977_16_3_a4,
     author = {H. Koch},
     title = {Generator and relation ranks for finite-dimensional nilpotent {Lie} algebras},
     journal = {Algebra i logika},
     pages = {364--374},
     publisher = {mathdoc},
     volume = {16},
     number = {3},
     year = {1977},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/AL_1977_16_3_a4/}
}