Pavel Pech. On Equivalence of Conditions for a Quadrilateral to Be Cyclic. In Beniamino Murgante, Osvaldo Gervasi, Andrés Iglesias, David Taniar, Bernady O. Apduhan, editors, Computational Science and Its Applications - ICCSA 2011 - International Conference, Santander, Spain, June 20-23, 2011. Proceedings, Part IV. Volume 6785 of Lecture Notes in Computer Science, pages 399-411, Springer, 2011. [doi]
Abstract is missing.