Search for axioelectric effect of 5.5 MeV solar axions using BGO detectors A. V. Derbin, S. V. Bakhlanov, I. S. Dratchnev, A. S. Kayunov and V. N. Muratova Eur. Phys. J. C, 73 7 (2013) 2490 Published online: 02 July 2013 DOI: 10.1140/epjc/s10052-013-2490-y