@misc{indiciae01645df45cc4,
  title = {A Single Variable Variational Approximation for a Perturbed Schroedinger Equation},
  author = {Brown, W. B. and Certain, P. R.},
  year = {1967},
  url = {https://ntrs.nasa.gov/citations/19670058871},
  note = {Source identifier: 19670058871}
}