• 위키피디아. “David Hilbert(다비트 힐베르트)”.

https://en.wikipedia.org/wiki/David_Hilbert

• 위키피디아. “EDVAC”. https://en.wikipedia.org/wiki/EDVAC

• 위키피디아. “John von Neumann(존 폰 노이만)”.

https://en.wikipedia.org/wiki/John_von_Neumann