@article{NSJOM_1999_29_3a_10,
     author = {P.B. 

 Gilkey},
     title = {li.elating algebraic. properties of the curvature tensor to geometiv},
     journal = {Novi Sad Journal of Mathematics},
     pages = {109-119},
     publisher = {mathdoc},
     volume = {29},
     number = {3},
     year = {1999},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1999_29_3a_10/}
}