@article{10_4064_ap170410_3_10,
     author = {Yaning Wang},
     title = {Cotton tensors on almost {coK\"ahler} 3-manifolds},
     journal = {Annales Polonici Mathematici},
     pages = {135--148},
     publisher = {mathdoc},
     volume = {120},
     number = {2},
     year = {2017},
     doi = {10.4064/ap170410-3-10},
     language = {de},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap170410-3-10/}
}