@conference{767686, author = {Kent Rochford and S. Kreger and John West}, title = {Variation in Optical Disc Birefringence Measurements}, year = {1999}, number = {3864}, month = {1999-07-01 00:07:00}, publisher = {Proc. Intl. Soc. for Optical Engineering (SPIE), Joint International Symposium on Optical Memory and Optical Data Storage 1999, Koloa, HI}, language = {en}, }