Reduced basis approximation and a-posteriori error estimation for the coupled Stokes-Darcy system. Advances in Computational Mathematics, (41)5:1131--1157, 2015. [PUMA: 65N55; 76D07 76S05; Domain Error Non-coercive Porous Reduced Stokes basis decomposition; equation; estimation; flow; medium method; problem; vorlaeufig] URL