1. Oscillation of partial difference equations with continuous variables;Agarwal;Math. Comput. Modelling,2000
2. Necessary and sufficient conditions for the oscillation of difference equations;Ladas;Panamer. Math. J.,1992
3. Necessary and sufficient conditions for the oscillation of systems of difference equations with continuous arguments;Meng;J. Math. Anal. Appl.,2005
4. Oscillation of difference equations with continuous arguments applications;Shen;Chinese Sci. Bull.,1996
5. Oscillation criteria of difference equations with continuous arguments;Zhang;Acta Math. Sinica,1995