Conversion electron measurement in the -decay of Y. Kojima, M. Shibata, A. Taniguchi, T. Hanafusa, E. Yoshida, K. Shizuma, Y. Kawase and S. Yamada Eur. Phys. J. A, 16 3 (2003) 331-336 Published online: 25 February 2003 DOI: 10.1140/epja/i2002-10107-8