Investigation of peak shapes in the MIBETA experiment calibrations E. Ferri, S. Kraft-Bermuth, A. Monfardini, A. Nucciotti, D. Schaeffer and M. Sisti Eur. Phys. J. A, 48 10 (2012) 131 Published online: 12 October 2012 DOI: 10.1140/epja/i2012-12131-5