@article{MT_2010_13_1_a8,
     author = {M. S. Chebarykov},
     title = {On the {Ricci} curvature of nonunimodular solvable metric {Lie} algebras of small dimension},
     journal = {Matemati\v{c}eskie trudy},
     pages = {186--211},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2010_13_1_a8/}
}