@article {MunganSSS91, title = {Infrared spectroscopic study of the dressed rotations of {CN}- isotopes in alkali-halide crystals}, journal = {Physical Review B}, volume = {43}, year = {1991}, pages = {43-61}, author = {Mungan, C. E. and Spitzer, R. C. and Sethna, J. P. and Sievers, A. J.} }