@article{NSJOM_2013_43_1a_5,
     author = {Bishwambhar Roy},
     title = {Unification of $\lambda$-closed sets via generalized
 topologies},
     journal = {Novi Sad Journal of Mathematics},
     pages = {51-58},
     publisher = {mathdoc},
     volume = {43},
     number = {1},
     year = {2013},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_2013_43_1a_5/}
}