Media type: E-Article Title: Problems for Solution: 4618-4622 Contributor: Oppenheim, A.; Ivanoff, V. F.; Hanisch, Herman; Thebault, Victor; Furstenberg, Harry imprint: Mathematical Association of America, 1955 Published in: The American Mathematical Monthly Language: English ISSN: 0002-9890; 1930-0972 Keywords: Advanced Problems and Solutions Origination: Footnote: Access State: Open Access