@article{RuedinSchneggJaccardAegerter_1973, title={EPR optical detection of F centre pairs in alkali halides. - II : Spin-lattice relaxation of the F centre in its relaxed excited state}, author={Ruedin, Y. and Schnegg, P. A. and Jaccard, C. and Aegerter, Michel A.}, doi={http://dx.doi.org/10.22028/D291-24075}, year={1973} }