Local probing of multiferroics: First-principles study of hyperfine parameters in YMnO3 and YMn2O5 J. N. Gonçalves, V. S. Amaral, J. G. Correia, A. Stroppa, A. S. Fenta, A. Baghizadeh and S. Picozzi EPJ Web of Conferences, 75 (2014) 09002 Published online: 03 July 2014 DOI: 10.1051/epjconf/20147509002