%0 Journal Article %A Jia, Shanghui %A Li, Deli %A Liu, Tang %A Zhang, Shuhua %T Richardson extrapolation and defect correction of mixed finite element methods for integro-differential equations in porous media %J Applications of Mathematics %D 2008 %P 13-39 %V 53 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10492-008-0011-3/ %R 10.1007/s10492-008-0011-3 %G en %F 10_1007_s10492_008_0011_3