“Effects of lattice distortion and Jahn- Teller coupling on the magnetoresistance of La0.7Ca0.3MnO3 and La0.5Ca0.5CoO3 epitaxial films”, N.-C. Yeh, R. P. Vasquez, D. A. Beam, C.- C. Fu, J. Huynh and G. Beach, J. Phys.: Condens. Matter 9, 3713 (1997).
http://iopscience.iop.org/article/10.1088/0953-8984/9/18/010