%0 Journal Article %A A. Duviryak %T Large-$j$ Expansion Method for Two-Body Dirac Equation %J Symmetry, integrability and geometry: methods and applications %D 2006 %V 2 %U http://geodesic.mathdoc.fr/item/SIGMA_2006_2_a28/ %G en %F SIGMA_2006_2_a28