亨克·J·M·博斯（Henk J. M . Bos或Henk Bos，亨克他的亨克大部分职业生涯于乌特勒支大学度过。 发表著作 Bos,亨克 H. J. M.; Kers, C.; Oort, F.; Raven, D. W. Poncelet's closure theorem. Exposition. Math. 5 (1987), no. 4, 289–364. Joseph Harris wrote for MathSciNet: "the authors trace very carefully the history of the problem, describing various approaches culminating in a modern proof. The paper is fascinating from both a historical and a mathematical point of view, and should serve as the definitive source of information about Poncelet's problem in the future" here Bos, Henk J. M. Redefining geometrical exactness. Descartes' transformation of the early modern concept of construction. Sources and Studies in the History of Mathematics and Physical Sciences. Springer-Verlag, New York, 2001. . Bos, Henk J. M. Lectures in the history of mathematics. History of Mathematics, 7. American Mathematical Society, Providence, RI; London Mathematical Society, London, 1993. Bos, H. J. M. The closure theorem of Poncelet. Rend. Sem. Mat. Fis. Milano 54 (1984), 145–158 (1987). 外部链接 Henk Bos appointed honorary professor at the University of Aarhus 荷兰历史学家他一直是亨克奥胡斯大学科学与技术学院数学史名誉教授。自其退休以来，亨克