“…Recent investigations on this topic include an elementary and real approach to values of the Riemann zeta function [5], Apostol-Euler polynomials arising from the umbral calculus [16], a new generalization of q-Bernoulli polynomial [17], a new q-generalization of Euler numbers and polynomials using the method of Kupershmidt [11], additional theorems for the Appell polynomials and associated classes of polynomial expansions [21], theorems on Apostol-Euler polynomials arising from Euler basis [27], a new class of q-Euler and q-Bernoulli polynomials [19,20], a modified q-Euler numbers of higher order with weight [22], the zeta and the q-zeta functions and associated series and integrals [29].…”