Schnirelmann, L.G. (1930). "On the additive properties of numbers", first published in Proceedings of the Don Polytechnic Institute in Novocherkassk(ロシア語), vol XIV (1930), pp. 3–27, and reprinted in Uspekhi Matematicheskikh Nauk(ロシア語), 1939, no. 6, 9–25.