João F. Ferreira. Designing an Algorithmic Proof of the Two-Squares Theorem. In Claude Bolduc, Jules Desharnais, Béchir Ktari, editors, Mathematics of Program Construction, 10th International Conference, MPC 2010, Québec City, Canada, June 21-23, 2010. Proceedings. Volume 6120 of Lecture Notes in Computer Science, pages 140-156, Springer, 2010. [doi]
Abstract is missing.