by Rangel-Rojo, Raul, Castelo, A, Flores-Arias, M T, Gómez-Reino, C, López-Gascón, C I, de la Fuente, G F
Published in Optics express (18.09.2006)

by Mora, M., Diez, J.C., Lopez-Gascon, C.I., Martinez, E., de la Fuente, G.F.
Published in IEEE transactions on applied superconductivity (01.06.2003)