Magnetocaloric effect and magnetic refrigeration in La0.7Ca0.15Sr0.15Mn1-xGaxO3 (0 ≤ x ≤ 0.1)S. Othmani and M. BalliEPJ Web of Conferences, 29 (2012) 00049DOI: https://doi.org/10.1051/epjconf/20122900049