Fizika Tverdogo Tela, 1991 Volume 33, Issue 4,Pages 1282–1285(Mi ftt6807)
Raman scattering in the $(\mathrm{Y}_{1-x}\mathrm{Gd}_{x})\mathrm{Ba}_{2}\mathrm{Cu}_{3}\mathrm{O}_{y}$ system and the relation between structure, vibrational spectra and critical tern perature in $( 123)$ superconductors