Mihoc, Ion. “The Problems of Calculus and Approximation of the Amount of Information”. Anal. Numér. Théor. Approx. 6, no. 2 (August 1, 1977): 155–161. Accessed November 23, 2024. https://ictp.acad.ro/jnaat/journal/article/view/1977-vol6-no2-art7.