%0 Journal Article %K Ybacuo %K Harmonic generation %A Q. Q Harry Lam %A Carson D Jeffries %A Paul H Berdahl %A Richard E Russo %A Gabriel BriceƱo %A Alex Zettl %B Amer.Phys.Soc. %D 1991 %F Laser %G eng %M 13 %P 568 %T Harmonic generation in YBaCuO and BiSrCaCuO %V 36