TY - JOUR AU - Yaning Wang TI - Cotton tensors on almost coKähler 3-manifolds JO - Annales Polonici Mathematici PY - 2017 SP - 135 EP - 148 VL - 120 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ap170410-3-10/ DO - 10.4064/ap170410-3-10 LA - de ID - 10_4064_ap170410_3_10 ER -