Monodromy for the hypergeometric function nFn-1. F. Beukers, G. Heckman (1989) Inventiones mathematicae
Multiple integrals and Fourier series expansions associated with hypergeometric polynomials R. S. Dahiya, B. Singh (1971) Δελτίο της Ελληνικής Μαθηματικής Εταιρίας