Gaddis, John Lewis (Winter 1992–1993). "International Relations Theory and the End of the Cold War". International Security. 17 (3). The MIT Press: 5–58. doi:10.2307/2539129. JSTOR2539129. S2CID14897416.
Phillips, Nelson; Zyglidopoulos, Stelios (November 1999). "Learning from Foundation: Asimov's Psychohistory and the Limits of Organization Theory". Organization. 6 (4): 591–608. doi:10.1177/135050849964002. S2CID145493820.
Gaddis, John Lewis (Winter 1992–1993). "International Relations Theory and the End of the Cold War". International Security. 17 (3). The MIT Press: 5–58. doi:10.2307/2539129. JSTOR2539129. S2CID14897416.
Lizza, Ryan (December 8, 2011). "When Newt met Hari Seldon". The New Yorker. Archived from the original on December 21, 2011. Retrieved October 12, 2019.
Gaddis, John Lewis (Winter 1992–1993). "International Relations Theory and the End of the Cold War". International Security. 17 (3). The MIT Press: 5–58. doi:10.2307/2539129. JSTOR2539129. S2CID14897416.
Phillips, Nelson; Zyglidopoulos, Stelios (November 1999). "Learning from Foundation: Asimov's Psychohistory and the Limits of Organization Theory". Organization. 6 (4): 591–608. doi:10.1177/135050849964002. S2CID145493820.
Lizza, Ryan (December 8, 2011). "When Newt met Hari Seldon". The New Yorker. Archived from the original on December 21, 2011. Retrieved October 12, 2019.