Alexander Fuchs Amit Goel Jim Grundy Sava Krstic Cesare Tinelli Ground Interpolation for the Theory of Equality. 413-427 2009 TACAS http://dx.doi.org/10.1007/978-3-642-00768-2_34 conf/tacas/2009 db/conf/tacas/tacas2009.html#FuchsGGKT09