David Delahaye Micaela Mayero Quantifier Elimination over Algebraically Closed Fields in a Proof Assistant using a Computer Algebra System. 57-73 2006 151 Electr. Notes Theor. Comput. Sci. 1 http://dx.doi.org/10.1016/j.entcs.2005.11.023 db/journals/entcs/entcs151.html#DelahayeM06