Robuta

https://research.ibm.com/publications/on-the-use-of-syntax-based-translators-for-symbolic-and-algebraic-manipulation On the use of syntax-based translators for symbolic and algebraic manipulation for SYMSAC 1971 -... On the use of syntax-based translators for symbolic and algebraic manipulation for SYMSAC 1971 by S.R. Petrick https://research.ibm.com/publications/completing-nth-powers-of-polynomials Completing NTH powers of polynomials for SYMSAC 1976 - IBM Research Completing NTH powers of polynomials for SYMSAC 1976 by Barry M. Trager et al. completingnthpowerspolynomialsibm