Spin-phonon coupling in multiferroic manganites RMnO3: comparison of pure (R = Eu, Gd, Tb) and substituted (R = Eu1-xYx) compoundsS. Issing, A. Pimenov, Y. Vu. Ivanov, A. A. Mukhin and J. GeurtsEur. Phys. J. B, 78 3 (2010) 367-372DOI: https://doi.org/10.1140/epjb/e2010-10701-0