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References 2.6 References and Suggested Readings
[1]
Kinsey, L.C and T.E. Moore Symmetry, Shape, and Space: An Introduction to Mathematics Through Geometry Key College Publishing, New York NY 2002.
[2]
O’Daffer, P.G. and S.R. Clemens, Geometry: An Investigative Approach 2nd ed., Pearson, 1992.
[3]
Casselman, Bill,
“How Did Escher Do It?” American Mathematical Society
https://www.ams.org/publicoutreach/feature-column/fcarc-circle-limit June 2010.
