Editing Umbral calculus (section)

==References==
*{{Citation | author-link=E. T. Bell | last1=Bell | first1=E. T. | title=The History of Blissard's Symbolic Method, with a Sketch of its Inventor's Life | jstor=2304144 | publisher=[[Mathematical Association of America]] | year=1938 | journal=[[American Mathematical Monthly|The American Mathematical Monthly]] | issn=0002-9890 | volume=45 | issue=7 | pages=414–421| doi=10.1080/00029890.1938.11990829 }}
*{{Citation | last1=Roman | first1=Steven M. | last2=Rota | first2=Gian-Carlo | author2-link=Gian-Carlo Rota | title=The umbral calculus | doi=10.1016/0001-8708(78)90087-7 | mr=0485417 | year=1978 | journal=[[Advances in Mathematics]] | issn=0001-8708 | volume=27 | issue=2 | pages=95–188| doi-access=free }}
* G.-C. Rota, D. Kahaner, and [[Andrew Odlyzko|A. Odlyzko]], ''"Finite Operator Calculus,"'' Journal of Mathematical Analysis and its Applications, vol. 42, no. 3, June 1973.  Reprinted in the book with the same title, Academic Press, New York, 1975.
*{{Citation | last1=Roman | first1=Steven | title=The umbral calculus | url=https://books.google.com/books?id=JpHjkhFLfpgC | publisher=Academic Press Inc. [Harcourt Brace Jovanovich Publishers] | location=London | series=Pure and Applied Mathematics | isbn=978-0-12-594380-2 | mr=741185  | year=1984 | volume=111}}. Reprinted by Dover, 2005.
*{{eom|id=Umbral_calculus&oldid=36881|first=S. |last=Roman|title=Umbral calculus}}