Ganesan, P., G. Palani, J. R. Graef, and E. Thandipani. “Second-Order Noncanonical Mixed Type Difference Equations of Unstable Type: New Oscillation Criteria”. Tamkang Journal of Mathematics, vol. 56, no. 3, Oct. 2024, pp. 225-36, doi:10.5556/j.tkjm.56.2025.5386.