%0 Journal Article %A R. RajaRajeswari %A M. L. Thivagar %A S. A. Ponmani %T Characterization of ultra separation axioms via $(1,2)\alpha$-kernel %J Lobachevskii journal of mathematics %D 2007 %P 217-229 %V 25 %I mathdoc %U http://geodesic.mathdoc.fr/item/LJM_2007_25_a6/ %G en %F LJM_2007_25_a6