Hoyenko, N.P., V.R. Hladun, and O.S. Manzij. 2014. “On the Infinite Remains of the Nörlund Branched Continued Fraction for Appell Hypergeometric Functions”. Carpathian Mathematical Publications 6 (1):11-25. https://doi.org/10.15330/cmp.6.1.11-25.