Mass bounds on a very light neutralinoHerbi K. Dreiner, Sven Heinemeyer, Olaf Kittel, Ulrich Langenfeld, Arne M. Weber and Georg WeigleinEur. Phys. J. C, 62 3 (2009) 547-572DOI: https://doi.org/10.1140/epjc/s10052-009-1042-y