| 1991 | An Analysis of the Subresultant Algorithm Over an Algebraic Number Field. | Lars Langemyr |
| 1991 | On the Multi-Threaded Computation of Integral Polynomial Greatest Common Divisors. | Wolfgang Kchlin |
| 1991 | A Program for Symmetry Analysis of Differential Equations. | Vladimir V. Kornyak, W. I. Fushchich |
| 1991 | Systematic Computer-Aided Analysis of Dynamic Systems. | W. Kleczka, E. Kreuzer |
| 1991 | Symbolic Calculation of Zero Dynamics for Nonlinear Control Systems. | Bram De Jager |
| 1991 | PC Implementation of Fast Dirac Matrix Trace Calculations. | Viatcheslav A. Ilyin, Alexander P. Kryukov, A. Ya. Rodionov, A. Yu. Taranov |
| 1991 | Symbolic Simplification of Tensor Expressions Using Symmetries, Dummy Indices and Identities. | Viatcheslav A. Ilyin, Alexander P. Kryukov |
| 1991 | Searching for Integrable PDE's by Testing Hirota's Three-Soliton Condition. | Jarmo Hietarinta |
| 1991 | Coset Enumeration Strategies. | George Havas |
| 1991 | Integrated System INTERCOMP and Computer Language for Physicists. | S. N. Grudtsin, V. N. Larin |
| 1991 | Algorithms for Sparse Rational Interpolation. | Dima Grigoriev, Marek Karpinski |
| 1991 | Working with Real Algebraic Plane Curves in REDUCE the GCUR Package. | Laureano Gonzlez-Vega |
| 1991 | A Subresultant Theory for Multivariate Polynomials. | Laureano Gonzlez-Vega |
| 1991 | "One Sugar cube, Please" or Selection Strategies in the Buchberger Algorithm. | Alessandro Giovini, Teo Mora, Gianfranco Niesi, Lorenzo Robbiano, Carlo Traverso |
| 1991 | Lie-Bcklund Symmetries of Coupled Nonlinear Schrdinger Equations. | Vladimir P. Gerdt, N. V. Khutornoy, A. Yu. Zharkov |
| 1991 | CASA: A Computer Algebra Package for Constructive Algebraic Geometry. | R. Gebauer, Michael Kalkbrener, B. Wall, Franz Winkler |
| 1991 | Mixed Symbolic-Numeric Solution of Symmetrical Nonlinear Systems. | Karin Gatermann |
| 1991 | Computations with Parametric Equations. | Xiao-Shan Gao, Shang-Ching Chou |
| 1991 | Stability Analysis of Difference Schemes by the Catastrophe Theory Methods and by Means of Computer Algebra. | Victor G. Ganzha, B. Yu. Scobelev, Evgenii V. Vorozhtsov |
| 1991 | On the Resolution of Index Form Equations. | Istvn Gal, Attila Peth, Michael Pohst |
| 1991 | Canonical Representations in Lisp and Applications to Computer Algebra systems. | Richard J. Fateman |
| 1991 | For Computations with Coherent Configurations. | I. A. Faradzev, Mikhail H. Klin |
| 1991 | DSC: A System for Distributed Symbolic Computation. | Angel Daz, Erich L. Kaltofen, Kurt Schmitz, Thomas Valente |
| 1991 | Scratchpad's View of Algebra II: A Categorical View of Factorization. | James H. Davenport, Patrizia M. Gianni, Barry M. Trager |
| 1991 | A Heuristic Selection Strategy for Lexicographic Grbner Bases? | Stephen R. Czapor |