## Referencia ^2c2dab Ellis, R., y Lewis, J. (2002). Investigations into the Kaprekar Process. _Rose-Hulman Undergraduate Mathematics Journal_, _3_(2). [https://scholar.rose-hulman.edu/rhumj/vol3/iss2/4/?utm_source=scholar.rose-hulman.edu%2Frhumj%2Fvol3%2Fiss2%2F4&utm_medium=PDF&utm_campaign=PDFCoverPages](https://scholar.rose-hulman.edu/rhumj/vol3/iss2/4/?utm_source=scholar.rose-hulman.edu%2Frhumj%2Fvol3%2Fiss2%2F4&utm_medium=PDF&utm_campaign=PDFCoverPages) ^a97049