@article{10_4064_cm_65_1_33_41,
     author = {Hiroshi Endo},
     title = {On an extended contact {Bochner} curvature tensor on contact metric manifolds},
     journal = {Colloquium Mathematicum},
     pages = {33--41},
     publisher = {mathdoc},
     volume = {65},
     number = {1},
     year = {1993},
     doi = {10.4064/cm-65-1-33-41},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-65-1-33-41/}
}