Structural, luminescent and magnetic studies of Mn(HPO4).3H2O A. Larrañaga, J.L. Mesa, J.L. Pizarro, R. Olazcuaga, F. Guillen, M.I. Arriortua and T. Rojo J. Phys. IV France, 123 (2005) 241-244 DOI: 10.1051/jp4:2005123043