Magnetocaloric effect in (with x = 0.1 , 0.2 and 0.3)N. Rammeh, M. Mohamed, F. Mokhtar, A. Kabadou and A. Van der LeeEur. Phys. J. Plus, 131 1 (2016) 10DOI: https://doi.org/10.1140/epjp/i2016-16010-2