TY - JOUR AU - Arias-Marco, Teresa AU - Kowalski, Oldřich TI - Classification of $4$-dimensional homogeneous weakly Einstein manifolds JO - Czechoslovak Mathematical Journal PY - 2015 SP - 21 EP - 59 VL - 65 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.1007/s10587-015-0159-4/ DO - 10.1007/s10587-015-0159-4 LA - en ID - 10_1007_s10587_015_0159_4 ER -