@misc{indiciae8319144ce2e2,
  title = {Accuracy of finite element approximations to structural problems},
  author = {Cyrus, N. J. and Eppink, R. T. and Fulton, R. E. and Walz, J. E.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700012403},
  note = {Source identifier: 19700012403}
}