TY - RPRT TI - Differential brightness thresholds in infancy. AU - J Doris AU - M Casper AU - R Poresky PY - 1967 DO - 10.1016/0022-0965(67)90047-1 UR - https://pubmed.ncbi.nlm.nih.gov/6080284/ ID - 6080284 ER -