Dmytryshyn, R., and I. Nyzhnyk. “On the Domain of Analytic Continuation of Lauricella–Saran’s Hypergeometric Functions $F_M$ and Their Ratios”. Ukrains’kyi Matematychnyi Zhurnal, vol. 77, no. 9, Nov. 2025, pp. 573–583, https://doi.org/10.3842/umzh.v77i9.9105.