@misc{indiciaeccbc13500b2e,
  title = {Analysis of a spherical shell with a non-axisymmetric boundary},
  author = {Elias, Z. M. and Ho, P. K.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660026821},
  note = {Source identifier: 19660026821}
}