Magnetic and EPR studies of the EuFe3(BO3)4 single crystal V. P. Dyakonov, R. Szymczak, A. D. Prokhorov, E. Zubov, A. A. Prokhorov, G. Petrakovskii, L. Bezmaternikh, M. Berkowski, V. Varyukhin and H. Szymczak Eur. Phys. J. B, 78 3 (2010) 291-298 Published online: 17 November 2010 DOI: 10.1140/epjb/e2010-10059-3