1. Gnedenko, B. V., and A. N. Kolmogorov: Limit distributions for sums of independent random variables. Moscow-Leningrad: Gostekhizdat, 1949 (in Russian). English translation: Cambridge/Mass.: Addison-Wesley, 1954.
2. Berry, A. C.: The accuracy of the Gaussian approximation to the sums of independent variates. Trans. Amer. math. Soc. 49, 122–136 (1941).
3. Zolotarev, V. M.: On the closeness of the distributions of the two sums of independent random variables. Teor. Verojatn. Primen. 10, 519–526 (1965) (in Russian).
4. Cramèr, H.: Sur un nouveau théoréme limite de la théorie des probabilités. Actual. Sci. et ind. Nr. 736. Paris 1938.
5. Petrov, V. V.: Generalization of the limit theorem of Cramèr. Uspekhi Mat. Nauk. 9, 195–202 (1954).