L. Pérez-Arrieta, M. Aguilar-Frutis, J. Rosas-Mendoza, C. Falcon, M. Jergel, and ., Two step synthesis of TlBa$_{2}$Ca$_{2}$Cu$_{3}$O$_{x}$ films on Ag substrates by spray pyrolysis of metal-acetylacetonates, Rev. Mex. Fís. 54, (2008).