1. Generalized Szász operators for the approximation in the infinite interval;Jakimovski;Mathematica (Cluj),1969
2. Generalized Szász operators for approximation in the complex domain;Wood;SIAM J. Appl. Math.,1969
3. Sur le développement des fonctions définies dans un intervalle infini en séries de polynomes de M.S. Bernstein;Chlodowsky;Compos. Math.,1937
4. Asymptotic expansion of the Jakimovski–Leviatan operators and their derivatives;Abel,2002
5. Modified Jakimovski–Leviatan operators;Ciupa;Creat. Math. Inform.,2007