A Monotonicity Property Involving 3F2 and Comparisons of the Classical Approximations of Elliptical Arc Length. - Roger W. Barnard; Kent Pearce; Kendall C. Richards (SIAM J. Math. Anal., 2000)

An Inequality Involving the Generalized Hypergeometric Function and the Arc Length of an Ellipse. - Roger W. Barnard; Kent Pearce; Kendall C. Richards (SIAM J. Math. Anal., 2000)