Vandoni, C.E. "SIGMA, A System for Interactive Graphical Mathematical Applications" Invited paper for the International School on Use of Computers in Nuclear Research, Tashkent, September 18-30, 1974. JINR D10, 11-8540, Dubna, 1974, p. 234-248.

Languages mentioned

• SIGMA {1972} Interactive maths system based on CFS