American Mathematical Monthly
Volume 44; Issue 46
|
|
7
|
|
8
|
|
9
|
|
10
|
|
12
|
|
14
|
|
15
|
|
20
|
|
22
|
|
26
|
|
27
|
|
28
|
|
29
|
|
35
|
|
36
|
|
38
|
|
39
|
|
59
|
|