B. Muschler, W. Prestel, E. Schachinger, J. P. Carbotte, R. Hackl, Shimpei Ono, Yoichi Ando: An electron-boson glue function derived from electronic Raman scattering. 2010Journal of Physics-Condensed Matter: 22. ISBN 0953-8984 http://dx.doi.org/10.1088/0953-8984/22/37/375702