TY - JOUR AU - Neytcheva, Maya AU - BÃĪngtsson, Erik TI - Preconditioning of nonsymmetric saddle point systems as arising in modelling of viscoelastic problems JO - Electronic transactions on numerical analysis PY - 2008 VL - 29 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ETNA_2008__29__a1/ LA - en ID - ETNA_2008__29__a1 ER -