This list is far from completeness. Here you can find only some of more then 180 Krawtchouk's papers. I omitted ones which have been published in local editions and are not awailable to the reader.
Note sur l'interpolation generalisee. Report on the World Mathematician Congress. Toronto: Univ. Toronto Press, 1924. Note sur la distribution des racines des polynomes derivees. L'ens. Math. V.25 (1926), No 3, pp. 74--77.