Precup, Radu. “Interpolating Convex Polynomials”. Anal. Numér. Théor. Approx. 10, no. 2 (August 1, 1981): 205–209. Accessed March 1, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1981-vol10-no2-art10.