ON THE NUMERICAL STABILITY OF THE BRANCHED CONTINUED FRACTION EXPANSION OF THE RATIO H4(a, d + 1; c, d; z)/H4(a, d + 2; c, d + 1; z). - DMYTRYSHYN, M. V.; CESARANO, C.; KONDUR, O.; LUTSIV, I.-A. (Matematychni Studii, 2025)