ALPERN, M The effect of luminance of the contrast inducing flashes on the spatial range of metacontrast. [electronic resource] - American journal of optometry and archives of American Academy of Optometry Jul 1954 - 363-9 p. digital Publication Type: Journal Article ISSN: 0002-9408 Standard No.: 10.1097/00006324-195407000-00005 doi Subjects--Topical Terms: Household ArticlesHumansRetinal DiseasesVision, Ocular