@inproceedings{inproceedings93b30ded,
title   = {Enhaced surface anisotropy evidenced by Mossbauer spectroscopy in nickel ferrite nanoparticles},
author = {Sousa, E C and Lara, M C F L and Depeyrot, J and Sousa, M H and Tourinho, F A and Goya, Gerardo Fabían and Rechenberg, Hercilio Rodolfo},
year = {2003},
publisher = {SBF},
booktitle   = {Encontro Nacional de Física da Matéria Condensada 26}
}