@article{LJM_2007_25_a6,
     author = {R. RajaRajeswari and M. L. Thivagar and S. A. Ponmani},
     title = {Characterization of ultra separation axioms via $(1,2)\alpha$-kernel},
     journal = {Lobachevskii journal of mathematics},
     pages = {217--229},
     year = {2007},
     volume = {25},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_2007_25_a6/}
}