Feasibility of intercalibration of CMS ECAL supermodules with cosmic rays W. Bertl, K. Deiters, Q. Ingram, D. Renker, T. Sakhelashvili and E. Frlez Eur. Phys. J. C, 41 S2 (2005) 11-17 Published online: 15 July 2005 DOI: 10.1140/epjcd/s2005-02-007-y