@article{article2018fbf8,
title   = {Self-adjoint extensions and spectral analysis in the generalized Kratzer problem},
author = {Baldiotti, M C and Gitman, Dmitri Maximovitch},
year = {2011},
doi = {10.1088/0031-8949/83/06/065007},
journal   = {PHYSICA SCRIPTA}
}