American Mathematical Monthly
Volume 93; Issue 16
|
|
7
|
|
12
|
|
13
|
|
16
|
|
17
|
|
18
|
|
19
|
|
20
|
|
23
|
|
25
|
|
26
|
|
29
|
|
32
|
|
38
|
|
41
|
|
49
|
|
58
|
|