1. Rational Solutions of Linear Differential and Difference Equations with Polynomial Coefficients (in russian);Abramov;Journal of Computational Mathematics and Mathematical Physics,1989
2. Integration of Elementary Functions;Bronstein;Journal of Symbolic Computation,1990
3. A Unification of Liouvillian Extensions;Bronstein;Applicable Algebra in Engineering, Communication and Computing,1990
4. The Risch Differential Equation on an Algebraic Curve;Bronstein,1991
5. Intégration Algorithmique des Fonctions Elémentairement Transcendantes sur une Courbe Algébrique;Davenport;Annales de l'Institut Fourier,1984