1. Inequalities for Euler’s gamma function;Alzer;Forum Math.,2008
2. Sharp inequalities for the digamma and polygamma functions;Alzer;Forum Math.,2004
3. Series involving the zeta function and multiple gamma functions;Choi;Appl. Math. Comput.,2004
4. Some mathematical constants;Choi;Appl. Math. Comput.,2007
5. Multiple gamma and related functions;Choi;Appl. Math. Comput.,2003