1. [AK] P. Appell and J. Kampé de Fériet. Fonctions Hypergéometriques et Hypersphériques. Gauthier-Villars, Paris, 1926.
2. [Bly] W. N. Bailey. Generalized Hypergeometric Series (Cambridge Tracts in Mathematics and Mathematical Physics, 32), 1935.
3. [Erd] A. Erdélyi (Ed.). Higher Transcendental Functions. Vol. I. McGraw-Hill, New York, 1953.
4. [Kt] M. Kato. The Riemann problem for Appell’s F4. Memoirs of the Faculty of Sci., Kyushu Univ., Ser. A 47 (1993), 227-243.
5. [Kmr] T. Kimura. Hypergeometric Functions of Two Variables. Tokyo University, 1973.