On Brahmagupta's and Kummer's quadrilaterals
K.R. Nagarajan
Chennai Mathematical Institute, IndiaR. Sridharan
Chennai Mathematical Institute, India
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Cite this article
K.R. Nagarajan, R. Sridharan, On Brahmagupta's and Kummer's quadrilaterals. Elem. Math. 61 (2006), no. 2, pp. 45–57
DOI 10.4171/EM/32