A. Benevatho Jaison, S. Khadar Babu, and V. Chandrasekar, “Kamenev-Type Oscillation Criteria for Generalized Second Order Sublinear -Difference Equations”, IJET, vol. 7, no. 4.10, pp. 1046–1049, Oct. 2018, doi: 10.14419/ijet.v7i4.10.27916.