Pérez-Sáez, R. B., P. P. Rodríguez, V. Recarte, M. L. Nó, O. A. Ruano, and J. M. San Juan. “Characterization of the Superelastic Effect in Cu-Al-Ni Alloys Elaborated by Powder Metallurgy”. Revista De Metalurgia, vol. 37, no. 2, Apr. 2001, pp. 199-02, doi:10.3989/revmetalm.2001.v37.i2.465.