TY - RPRT TI - IREX IX part two: multispectral iris recognition AU - Quinn, George W AU - Grother, Patrick AU - Matey, James PY - 2019 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 8252 DO - 10.6028/NIST.IR.8252 ER -