Birregah, Babiga; Doh, Prosper K.; Adjallah, Kondo H. (2010-07-01). «A systematic approach to matrix forms of the Pascal triangle: The twelve triangular matrix forms and relations» (στα αγγλικά). European Journal of Combinatorics31 (5): 1205–1216. doi:10.1016/j.ejc.2009.10.009. ISSN0195-6698.
Birregah, Babiga; Doh, Prosper K.; Adjallah, Kondo H. (2010-07-01). «A systematic approach to matrix forms of the Pascal triangle: The twelve triangular matrix forms and relations» (στα αγγλικά). European Journal of Combinatorics31 (5): 1205–1216. doi:10.1016/j.ejc.2009.10.009. ISSN0195-6698.