@misc{indiciae84709d46fc8b,
  title = {Perturbed ladder-operator method: An algebraic recursive solution of the perturbed Morse-oscillator eigenequation.},
  author = {N Bessis and G Bessis},
  year = {1994},
  doi = {10.1103/physreva.50.4506},
  url = {https://pubmed.ncbi.nlm.nih.gov/9911449/},
  note = {Source identifier: 9911449}
}