@article{NSJOM_1999_29_3a_27,
     author = {H. 

 Singh and Q. Khan},
     title = {On 

 symmetric {Riemannian} manifolds},
     journal = {Novi Sad Journal of Mathematics},
     pages = {301-308},
     publisher = {mathdoc},
     volume = {29},
     number = {3},
     year = {1999},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1999_29_3a_27/}
}