Fizika Tverdogo Tela, 1992 Volume 34, Issue 8,Pages 2572–2577(Mi ftt7672)
Positive muon magnetic spin relaxation in $\mathrm{HoBa}_{2}\mathrm{Cu}_{3}\mathrm{O}_{7-\delta}$ and $\mathrm{Ho}_{0.5}\mathrm{Y}_{0.5}\mathrm{Ba}_{2}\mathrm{Cu}_{3}\mathrm{O}_{7-\delta}$