Homentcovschi, Dorel. “Some Formulae for Numerical Differentiation and Integration of Analytic Functions”.
Anal. Numér. Théor. Approx.
, vol. 10, no. 1, Feb. 1981, pp. 23-31,
https://ictp.acad.ro/jnaat/journal/article/view/1981-vol10-no1-art4
.