Magnetic properties of iron nitride-alumina nanocomposite materials prepared by high-energy ball millingS. R. Mishra, G. J. Long, F. Grandjean, R. P. Hermann, S. Roy, N. Ali and A. VianoEur. Phys. J. D, 24 1-3 (2003) 93-96DOI: https://doi.org/10.1140/epjd/e2003-00146-1