@article{KJM_2012_36_2_a12,
     author = {Uday C and and De and Sahanous Mallick},
     title = {On weakly symmetric spacetimes},
     journal = {Kragujevac Journal of Mathematics},
     pages = {299 },
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KJM_2012_36_2_a12/}
}