Obxecto imposíbel (Galician Wikipedia)

Analysis of information sources in references of the Wikipedia article "Obxecto imposíbel" in Galician language version.

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1books.google.com

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1anopticalillusion.com

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1web.archive.org

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anopticalillusion.com (Global: low place; Galician: low place)

"Impossible Elephant" (en inglés). 9 de marzo de 2012. Consultado o 12-05-2021. ..one of the most famous and classic optical illusions of all time. While most people know it simply as the "impossible elephant," the actual title of the work is "L’egs-istential Quandary." |first1= sen |last1= in Authors list (Axuda)

archive.org (Global: 6^th place; Galician: 8^th place)

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

books.google.com (Global: 3^rd place; Galician: 12^th place)

Barrow, John D (1999). Impossibility: The Limits of Science and the Science of Limits. ISBN 9780195130829.

doi.org (Global: 2^nd place; Galician: 7^th place)

dx.doi.org

"Impossible objects: A special type of optical illusion". British Journal of Psychology 49: 31–33. 1958. PMID 13536303. doi:10.1111/j.2044-8295.1958.tb00634.x. |first1= sen |last1= in Authors list (Axuda)

fink.com (Global: low place; Galician: low place)

"Impossible Figures in Perceptual Psychology".

google.com.br (Global: 622^nd place; Galician: 475^th place)

books.google.com.br

Barrow, John D. (1999). Impossibility: The Limits of Science and the Science of Limits (en inglés).

nih.gov (Global: 4^th place; Galician: 6^th place)

ncbi.nlm.nih.gov

"Impossible objects: A special type of optical illusion". British Journal of Psychology 49: 31–33. 1958. PMID 13536303. doi:10.1111/j.2044-8295.1958.tb00634.x. |first1= sen |last1= in Authors list (Axuda)

web.archive.org (Global: 1^st place; Galician: 1^st place)

Khoh, Chih W.; Kovesi, Peter (fevereiro de 1999). "Animating Impossible Objects".

wolfram.com (Global: 513^th place; Galician: 886^th place)

mathworld.wolfram.com

"Impossible Fork".