TY - RPRT TI - Measuring In-Plane Displacements with Variable Sensitivity Using Diffractive Optic Interferometry AU - Shepherd, Robert L. AU - Gilbert, John A. AU - Cole, Helen J. AU - Ashley, Paul R. PY - 1998 UR - https://ntrs.nasa.gov/citations/19990113196 ID - 19990113196 ER -