Analysis of the neutralino system in three–body leptonic decays of neutralinos S.Y. Choi, B.C. Chung, J. Kalinowski, Y.G. Kim and K. Rolbiecki Eur. Phys. J. C, 46 2 (2006) 511-520 Published online: 13 March 2006 DOI: 10.1140/epjc/s2006-02482-1