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Schleicher, David L. (2006-01-24). "An Interview with DAVID L. SCHLEICHER"(PDF). conservancy.umn.edu (Interview). Interviewed by Arthur L. Norberg. Charles Babbage Institute. Archived(PDF) from the original on 2022-10-09. Retrieved 2021-03-05.
Schleicher, David L. (2006-01-24). "An Interview with DAVID L. SCHLEICHER"(PDF). conservancy.umn.edu (Interview). Interviewed by Arthur L. Norberg. Charles Babbage Institute. Archived(PDF) from the original on 2022-10-09. Retrieved 2021-03-05.