Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	S. A. Abramov (1989): Problems of computer algebra involved in the search for polynomial solutions of linear differential and difference equations, Moscow Univ. Comput. Math. and Cybernet., no. 3, 63-68. Transl. from Vestn. Moskov. univ. Set. XV. Vychisl. mat. kibernet., no. 3, 56-60.
	2	S. A. Abramov, Rational solutions of linear differential and difference equations with polynomial coefficients, USSR Computational Mathematics and Mathematical Physics, v.29 n.6, p.7-12, 1989  [doi>10.1016/S0041-5553(89)80002-3]
	3	S. A. Abramov, Rational solutions of linear difference and q-difference equations with polynomial coefficients, Proceedings of the 1995 international symposium on Symbolic and algebraic computation, p.285-289, July 10-12, 1995, Montreal, Quebec, Canada  [doi>10.1145/220346.220383]
	4	S. A. Abramov (1995): Rational solutions of linear difference and q-difference equations with polynomial coefficients. Programming and Comput. Software 21, No 6, 273-278. Transl. from Programmirovanie, No 6, 3-11.
	5	Sergei A. Abramov , Manuel Bronstein , Marko Petkovšek, On polynomial solutions of linear operator equations, Proceedings of the 1995 international symposium on Symbolic and algebraic computation, p.290-296, July 10-12, 1995, Montreal, Quebec, Canada  [doi>10.1145/220346.220384]
	6	Barkatou M.A. (1989): Contribution ~ l'~tude des ~quations diff~rentielles et aux diff~rences dans le champ complexe, th~se soutenue le 6 juin 1989 ~ l'institut national polytechnique de Grenoble (France).
	7	Moulay A. Barkatou, On rational solutions of systems of linear differential equations, Journal of Symbolic Computation, v.28 n.4-5, p.547-567, Oct./Nov. 1999  [doi>10.1006/jsco.1999.0314]
	8	G.D, Birkhoff: Formal Theory of irregular linear difference equations, Acta. Math. 54 (1930), 205-246
	9	A. Hilali , A. Wazner , Pamela B. Lawhead, Super-irreducible form of linear differential systems, Numerische Mathematik, v.50 n.4, p.429-449, FEB. 1987  [doi>10.1007/BF01396663]
	10	Yiu-Kwong Man , Francis J. Wright, Fast polynomial dispersion computation and its application to indefinite summation, Proceedings of the international symposium on Symbolic and algebraic computation, p.175-180, July 20-22, 1994, Oxford, United Kingdom  [doi>10.1145/190347.190413]

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