@article{PIM_1994_N_S_56_70_a13,
     author = {Hiroshi Endo},
     title = {On the {Ac-contact} {Bochner} {Curvature} {Tensor} {Field} on {Almost} {Cosymplectic} {Manifolds}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {102 },
     year = {1994},
     volume = {_N_S_56},
     number = {70},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1994_N_S_56_70_a13/}
}