@misc{indiciaec1a27b6d8124,
  title = {Improved isoparametric solid and membrane elements},
  author = {Case, W. R. and Vandegrift, R. E.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860016353},
  note = {Source identifier: 19860016353}
}