SCIENCE AND COMPLEXITY by WARREN WEAVER
American Scientist
Vol. 36, No. 4 (OCTOBER 1948), pp. 536-544 (9 pages) https://www.jstor.org/stable/27826254
The Architecture of Complexity by Herbert A. Simon
Proceedings of the American Philosophical Society
Vol. 106, No. 6 (Dec. 12, 1962), pp. 467-482 (16 pages)
Published by: American Philosophical Society