1. Elementary problem 2216;Klamkin;Amer. Math. Mon.,1970
2. Aufgaben and Lehrsätze aus der Analysis;Polya,1945
3. Two nonelementary definite integrals;Corrington;Math. Tables Aids Comput.,1954
4. Numerical evaluation of some integrals, problem 68-8 solution by I. Farkas;Corrington;SIAM Rev.,1969
5. Gamma function and related functions;Davis,1964