%0 Journal Article %A Rutwig Campoamor-Stursberg %T Application of the Gel'fand Matrix Method to the Missing Label Problem in Classical Kinematical Lie Algebras %J Symmetry, integrability and geometry: methods and applications %D 2006 %V 2 %U http://geodesic.mathdoc.fr/item/SIGMA_2006_2_a27/ %G en %F SIGMA_2006_2_a27