Autor:	Trigg, C. W., Hochster, Melvin, Wang, Chih-yi, Klamkin, M. S., Andrushkiw, Joseph, Kravitz, Sidney, Love, J. B., Breault, D. A., Bankoff, Leon, Clawson, J. W., Demir, Huseyin, Karst, Edgar, Gehman, Harry M., Thebault, Victor, Steinberg, D. A., Gould, Henry W., Hochster, Melvin, Bowen, Ben B.
Zdroj:	Mathematics Magazine, 1959 Nov 01. 33(2), 109-118.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/3029747 Zobrazit plný text záznamu