Flouring spin diffusion barrier in Pr3+:LaF3 observed by cross relaxation, Vol. 16 of Optical Society of America Technical Digest Series (Optical Society of America, Washington D.C.)
Wald LL, Hahn EL, Lukac M. . Flouring spin diffusion barrier in Pr3+:LaF3 observed by cross relaxation, Vol. 16 of Optical Society of America Technical Digest Series (Optical Society of America, Washington D.C.). Persistent Spectral Hole-Burning, Science and Applications. 1991; 16:244-247.