GREIFF BRAVO L. INTEGRACION DE LA FORMA f(x)eax. Rev. Acad. Colomb. Cienc. Ex. Fis. Nat. [Internet]. 1963 Dec. 31 [cited 2026 May 19];12(45):87-8. Available from: https://raccefyn.co/index.php/raccefyn/article/view/3386