Professional computer work for the blind. - Theodor D. Sterling; M. Lichstein; F. Scarpino; D. Stuebing; William Stuebing (Commun. ACM, 1964)

BLNSYS - a 1401 operating system with Braille capabilities. - Joseph B. Landwehr; Charles McLaughlin; H. Mueller; M. Lichstein; Seymour V. Pollack (Commun. ACM, 1965)