TY - JOUR AU - Burnett, John AU - Gupta, R AU - And, U C2 - Optical Microlithography XIII Proc SPIE 4000 DA - 2000-01-01 LA - en M1 - 4000 PB - Optical Microlithography XIII Proc SPIE 4000 PY - 2000 TI - Absolute index of refraction and its temperature dependence of calcium fluoride, barium fluoride, and strontium fluoride near 157 nm, ed. by C.H. Progler ER -