Autor:	Hoyt, John P., Rotando, Louis, Rothschild, Joseph, Berman, Martin, Gadd, J. Orten, Sulek, Robert, Suna, Lester, Johnsonbaugh, Richard, Schaumberger, Norman, Fala, Gino T., Jewett, Bob, Christiansen, Sarah, Miller, Richard, Kahn, Steven, Hennagin, Stephen c., Zujus, Alexander, Kahn, Steve, Herschaft, Ronald, Eisenberg, Theodore A., Lindstrom, Peter A.
Zdroj:	The Two-Year College Mathematics Journal, 1976 Feb 01. 7(1), 28-32.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/3027346 Zobrazit plný text záznamu