American Mathematical Monthly
Volume 88; Issue 72
|
|
5
|
|
9
|
|
10
|
|
14
|
|
16
|
|
17
|
|
18
|
|
20
|
|
24
|
|
27
|
|
28
|
|
29
|
|
31
|
|
32
|
|
34
|
|
37
|
|