Elementary Problems: E3289-E3294 Alsina, C.; West, Douglas B.; Wiedemann, Douglas H. ...
The American mathematical monthly,
11/1988, Letnik:
95, Številka:
9
Journal Article
Problems Bulman-Fleming, Sydney; Wang, Edward T. H.; Group, Chico Problem ...
The College mathematics journal,
09/1987, Letnik:
18, Številka:
4
Journal Article