Pie chart (English Wikipedia)

Cohen, I. Bernard (March 1984). "Florence Nightingale". Scientific American. 250 (3): 128–137. Bibcode:1984SciAm.250c.128C. doi:10.1038/scientificamerican0384-128. PMID 6367033. (alternative pagination depending on country of sale: 98–107, bibliography on p. 114) online article – see documents link at left
Simkin, D., & Hastie, R. (1987). An Information-Processing Analysis of Graph Perception. Journal of the American Statistical Association, 82(398), 454. doi:10.2307/2289447. Kosara, Robert (13 April 2011). "In Defense of Pie Charts". Retrieved April 13, 2011.
Spence, Ian; Lewandowsky, Stephan (1 January 1991). "Displaying proportions and percentages". Applied Cognitive Psychology. 5 (1): 61–77. doi:10.1002/acp.2350050106.

eagereyes.org

Simkin, D., & Hastie, R. (1987). An Information-Processing Analysis of Graph Perception. Journal of the American Statistical Association, 82(398), 454. doi:10.2307/2289447. Kosara, Robert (13 April 2011). "In Defense of Pie Charts". Retrieved April 13, 2011.
"An Illustrated Tour of the Pie Chart Study Results". eagereyes. 2016-06-28. Retrieved 2016-11-28.
"A Reanalysis of A Study About (Square) Pie Charts from 2009". eagereyes. 2016-07-11. Retrieved 2016-11-28.

Cohen, I. Bernard (March 1984). "Florence Nightingale". Scientific American. 250 (3): 128–137. Bibcode:1984SciAm.250c.128C. doi:10.1038/scientificamerican0384-128. PMID 6367033. (alternative pagination depending on country of sale: 98–107, bibliography on p. 114) online article – see documents link at left

Krygier, John (28 August 2007). "Perceptual Scaling of Map Symbols". makingmaps.net. Retrieved 3 May 2015.

Cohen, I. Bernard (March 1984). "Florence Nightingale". Scientific American. 250 (3): 128–137. Bibcode:1984SciAm.250c.128C. doi:10.1038/scientificamerican0384-128. PMID 6367033. (alternative pagination depending on country of sale: 98–107, bibliography on p. 114) online article – see documents link at left

Greenbaum, Hilary; Rubinstein, Dana (20 April 2012). "Who Made That Pie Chart?". The New York Times.

Cohen, I. Bernard (March 1984). "Florence Nightingale". Scientific American. 250 (3): 128–137. Bibcode:1984SciAm.250c.128C. doi:10.1038/scientificamerican0384-128. PMID 6367033. (alternative pagination depending on country of sale: 98–107, bibliography on p. 114) online article – see documents link at left