Milovanović, I. Ž., J. E. Pečarić, and Gh. Toader. “On an Inequality of Nanson”. Anal. Numér. Théor. Approx. 15, no. 2 (August 1, 1986): 149–151. Accessed May 6, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1986-vol15-no2-art9.