%0 Journal Article
%A Juan Triana
%A Rodrigo de Castro
%T The formal derivative operator and multifactorial numbers
%J Revista colombiana de matematicas
%D 2019
%P 125-137
%V 53
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RCM_2019_53_2_a1/
%F RCM_2019_53_2_a1