@book{ Solr-acta42123, title = {On the oscillation of second order nonlinear neutral delay difference equations}, series = {Electronic journal of qualitative theory of differential equations}, author = {Tripathy Arun Kumar}, year = {2008}, url = {http://acta.bibl.u-szeged.hu/42123/1/ejqtde_2008_011_001-012.pdf} }