@inproceedings{inproceedings4c6eeec1, title = {Infrared and raman spectra of superconducting 'BI IND.4'' ('ca','sr') IND.6''CU IND.4''O IND.16+X'}, author = {Massa, N F and Guida, J and Piro, O E and Aymonino, P J and Castellano, Eduardo Ernesto and Basso, Heitor Cury and Gallo, Nelson José Heraldo and Martin, A A and Andreeta, José Pedro}, year = {1988}, publisher = {World Scientific}, booktitle = {Latin-American Conference on High Temperature Superconductivity} }