Temperature dependence of the anisotropic electrodynamics in the ladder compounds Sr14-xCaxCu24O41B. Ruzicka, L. Degiorgi, U. Ammerahl, G. Dhalenne and A. RevcolevschiEur. Phys. J. B, 6 3 (1998) 301-305DOI: https://doi.org/10.1007/s100510050552