@article{SIGMA_2006_2_a27,
     author = {Rutwig Campoamor-Stursberg},
     title = {Application of the {Gel'fand} {Matrix} {Method} to the {Missing} {Label} {Problem} in {Classical} {Kinematical} {Lie} {Algebras}},
     journal = {Symmetry, integrability and geometry: methods and applications},
     year = {2006},
     volume = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SIGMA_2006_2_a27/}
}