@article{NSJOM_2003_33_2a_4,
     author = {U.C. De and A. A. Shaikh and S. Biswas},
     title = {On {F-recurrent} {Sasakain} 

 manifolds},
     journal = {Novi Sad Journal of Mathematics},
     pages = {43-48},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {2003},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2003_33_2a_4/}
}