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Wilson, Kevin D; Farah, Martha J (May 2003). "When does the visual system use viewpoint-invariant representations during recognition?". Cognitive Brain Research. 16 (3): 399–415. doi:10.1016/S0926-6410(03)00054-5. PMID12706220.
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Di Lazzaro, Paolo; Murra, Daniele; Vitelli, Pietro (22 November 2019). "The interdisciplinary nature of anamorphic images in a journey through art, history and geometry". Journal of Mathematics and the Arts. 13 (4): 353–368. doi:10.1080/17513472.2018.1506627. ISSN1751-3472. S2CID150168579.
Di Lazzaro, Paolo; Murra, Daniele; Vitelli, Pietro (22 November 2019). "The interdisciplinary nature of anamorphic images in a journey through art, history and geometry". Journal of Mathematics and the Arts. 13 (4): 353–368. doi:10.1080/17513472.2018.1506627. ISSN1751-3472. S2CID150168579.