American Mathematical Monthly
Volume 93; Issue 41
|
|
7
|
|
9
|
|
10
|
|
13
|
|
14
|
|
15
|
|
16
|
|
17
|
|
18
|
|
20
|
|
22
|
|
24
|
|
26
|
|
28
|
|
30
|
|
35
|
|
42
|
|
44
|
|
48
|
|
49
|
|
57
|
|