Paul B. Sheatsley
发表
Ithiel de Sola Pool,
Dean Manheimer,
Paul B. Sheatsley,
1957
.
Paul B. Sheatsley,
A. Greeley,
P. Sheatsley,
1971,
Scientific American.
Paul B. Sheatsley,
Calvin Jones,
P. Sheatsley,
1981
.