So far, I've found two: Richard Fateman: "A Review of Macsyma", IEEE Trans. Knowledge and Data Engineering, Vol 1 No. 1, March 1989, pp133 - 145 Carl Leinbach: "Macsyma" (Software Review), The College Math. J, Vol 28 No. 3, May 1997, pp 224 - 230. Are there any others, either online or published? Thanks, Alasdair