TY - RPRT TI - Variably Transmittive, Electronically-Controlled Eyewear AU - Chapman, John J. AU - Glaab, Louis J. AU - Schott, Timothy D. AU - Howell, Charles T. AU - Fleck, Vincent J. PY - 2013 UR - https://ntrs.nasa.gov/citations/20140001871 ID - 20140001871 ER -