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2. Solving a system of diophantine equations with lower and upper bounds on the variables;Aardal;Technical Report UU-CS-1998-36, Department of Computer Science, Utrecht University,1998
3. Non-standard approaches to integer programming;Aardal;Technical Report UU-CS-1999-41, Department of Computer Science, Utrecht University,1999
4. General solution of systems of linear diophantine equations and inequations;Abdulrab,1995
5. Solving systems of linear diophantine equations and word equations;Abdulrab,1989