"Stanford University. Euler Project." . . . . "American Mathematical Society." . . "Stanford University. Digital Typography Group." . . "METAFONT." . . . . . . . . "Stanford University, Euler Project, records"@en . . . "Collection consists of Hermann Zapf's original drawings used to develop the Euler typeface, as well as computer printouts and proofs; correspondence between Zapf and Donald E. Knuth concerning the typeface design; and the working papers of the Digital Typography Group, which produced the final digital typeface, including correspondence, character proofs, galleys, computer programs, notebooks, logs, and research notes."@en . . . . . . .