%0 Journal Article %A Arias-Marco, Teresa %A Kowalski, Oldřich %T Classification of $4$-dimensional homogeneous weakly Einstein manifolds %J Czechoslovak Mathematical Journal %D 2015 %P 21-59 %V 65 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.1007/s10587-015-0159-4/ %R 10.1007/s10587-015-0159-4 %G en %F 10_1007_s10587_015_0159_4