TY - RPRT TI - Contrast-increment thresholds are related to variability in the apparent contrast function. AU - J A Baro AU - S Lehmkuhle AU - R A Applegate PY - 1988 DO - 10.3758/bf03210432 UR - https://pubmed.ncbi.nlm.nih.gov/3226897/ ID - 3226897 ER -