1. Barnes, E.W.: The Theory of the G-function. Q. J. Math. 31, 264–314 (1899)
2. Choi, J., Srivastava, H.M., Adamchik, V.S.: Multiple gamma and related functions. Appl. Math. Comput. 134, 515–533 (2003)
3. Cvijović, D., Klinowski, J.: Closed-form summation of some trigonometric series. Math. Comput. 64, 205–210 (1995)
4. Erdélyi, A., Magnus, W., Oberhettinger, F., Tricomi, F.G.: Higher Transcendental Functions, vol. I. McGraw-Hill Book Company, New York (1953)
5. Glaisher, J.W.L.: On the product $$1^1\cdot 2^2\cdot 3^3 \cdots n^n$$. Messenger Math. 7, 43–47 (1877)