(en) David P. Robbins, « Areas of Polygons Inscribed in a Circle », Discrete & Computational Geometry, vol. 12, no 1, , p. 223-236 (DOI10.1007/BF02574377).
(en) David P. Robbins, « Areas of Polygons Inscribed in a Circle », American Mathematical Monthly, vol. 102, no 6, , p. 523-530 (DOI10.2307/2974766).
(en) Ralph H. Buchholz et James A. MacDougall, « Cyclic polygons with rational sides and area », Journal of Number Theory, vol. 128, no 1, , p. 17–48 (DOI10.1016/j.jnt.2007.05.005).