@misc{indiciaeaed43e514d4f,
  title = {Doubly-curved variable-thickness isoparametric heterogeneous finite element},
  author = {Minich, M. D. and Chamis, C. C.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770048019},
  note = {Source identifier: 19770048019}
}