Just another rediscovery of the closed-form solvability of the
Gauss' hypergeometric ODE. In the authors' own words, ``the results
are compared with ones obtained before".


MR2518190 Meyur, S.; Debnath, S. Schrödinger equation with modified
Hulthén plus Scarf potential. Bulg. J. Phys. 35 (2008), no. 4,
290--302. 81Q05