@article{PIM_1993_N_S_53_67_a15,
     author = {Czeslaw Konopka},
     title = {Theorems {Concerning} {Certain} {Special} {Tensor} {Fields} on {Riemannian} {Manifolds}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {115 },
     publisher = {mathdoc},
     volume = {_N_S_53},
     number = {67},
     year = {1993},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1993_N_S_53_67_a15/}
}