Impossible object (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Impossible object" in English language version.

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ams.org

Phillips, Tony. "The Topology of Impossible Spaces". American Mathematical Society.

archive.org

Seckel, Al (2004). Masters of Deception: Escher, Dalí & the Artists of Optical Illusion. Sterling Publishing Company. p. 261. ISBN 1402705778.

books.google.com

Barrow, John D (1999). Impossibility: The Limits of Science and the Science of Limits. Oxford University Press. p. 14. ISBN 9780195130829.

doi.org

Aigner, Martin; Ziegler, Günter M. (2018). "Chapter 15: The Borromean Rings Don't Exist". Proofs from THE BOOK (6th ed.). Springer. pp. 99–106. doi:10.1007/978-3-662-57265-8_15. ISBN 978-3-662-57265-8.
Penrose, LS; Penrose, R. (1958). "Impossible objects: A special type of optical illusion". British Journal of Psychology. 49 (1): 31–33. doi:10.1111/j.2044-8295.1958.tb00634.x. PMID 13536303.
Penrose, Roger (1992). "On the Cohomology of Impossible Figures". Leonardo. 25 (3, 4). The MIT Press: 245–247. doi:10.2307/1575844. JSTOR 1575844. S2CID 125905129.

fink.com

"Impossible Figures in Perceptual Psychology". Fink.com. Retrieved 11 February 2014.

jstor.org

Penrose, Roger (1992). "On the Cohomology of Impossible Figures". Leonardo. 25 (3, 4). The MIT Press: 245–247. doi:10.2307/1575844. JSTOR 1575844. S2CID 125905129.

nih.gov

pubmed.ncbi.nlm.nih.gov

Penrose, LS; Penrose, R. (1958). "Impossible objects: A special type of optical illusion". British Journal of Psychology. 49 (1): 31–33. doi:10.1111/j.2044-8295.1958.tb00634.x. PMID 13536303.

semanticscholar.org

api.semanticscholar.org

Penrose, Roger (1992). "On the Cohomology of Impossible Figures". Leonardo. 25 (3, 4). The MIT Press: 245–247. doi:10.2307/1575844. JSTOR 1575844. S2CID 125905129.

uwa.edu.au

csse.uwa.edu.au

Khoh, Chih W.; Kovesi, Peter (February 1999). "Animating Impossible Objects". Archived from the original on 28 May 2015. Retrieved 10 February 2014.

web.archive.org

Khoh, Chih W.; Kovesi, Peter (February 1999). "Animating Impossible Objects". Archived from the original on 28 May 2015. Retrieved 10 February 2014.

wolfram.com

mathworld.wolfram.com

"Impossible Fork". Wolfram Research. Retrieved 10 February 2014.