1. Banerjee, D., Batabyal, S.: Hyper relative order (p,q) of entire functions. Analele Universitatii de Vest, Timisoara, Seria Mathematica-Informatica LV 2, 65–84 (2017)
2. Bergweiler, W., Jank, G., Volkmann, L.: Wachstumsverhalten ZusammengesetzerFunktionen. Results Math. 7, 35–53 (1984)
3. Bernal, L.: Orden relativ de crecimiento de funciones enteras. Collect Mth. 39, 209–229 (1988)
4. Datta, S.K., Dutta, B.: On the growth analysis of complex linear differential equations with entire and meromorphic coefficients. Int. J. Eng. Sci. Math. 7(5), 44–55 (2018)
5. Datta, S.K., Dutta, B.: On the central index of composite entire functions. Int. J. Eng. Sci. Math. 7(5), 90–101 (2018)