Helimagnetism in gallium substituted LuMn6Ge6 studied by nuclear magnetic resonance J. Schnelzer, R. Montbrun, B. Pilawa, G. Fischer, G. Venturini and E. Dormann Eur. Phys. J. B, 58 1 (2007) 11-23 Published online: 28 July 2007 DOI: 10.1140/epjb/e2007-00204-6