Sylvie Boldo Jean-Christophe Filliâtre Guillaume Melquiond Combining Coq and Gappa for Certifying Floating-Point Programs. 59-74 2009 Calculemus/MKM http://dx.doi.org/10.1007/978-3-642-02614-0_10 conf/mkm/2009 db/conf/mkm/mkm2009.html#BoldoFM09