M. Simsek et S. Ozcelik, BOUND-STATE SOLUTIONS OF THE SCHRODINGER-EQUATION FOR REDUCIBLE POTENTIALS - GENERAL LAURENT SERIES AND 4-PARAMETER EXPONENTIAL-TYPE POTENTIALS, Physics letters. A, 186(1-2), 1994, pp. 35-40
Using an ansatz for the eigenfunction, we have obtained exact solution
s of the Schrodinger equation for two types of generalized potentials:
the general Laurent type, and a four-parameter exponential potential,
which can be reduced to the well-known types by choosing appropriate
values for the parameters.