Line shift of two- photon transitions of 'EU POT.2+' in 'CAF IND.2' as a function of the temperature - Ioriatti Júnior, Lidério Citrângulo; Castro Neto, Jarbas Caiado de; Nunes, Luiz Antônio de Oliveira; Zílio, Sérgio Carlos (Physical Review B, 1988)