@misc{indiciae9919db2491d1,
  title = {Analysis of optical elements with flat boundary surfaces.},
  author = {Te-Tan Liao and Psang Dain Lin},
  year = {2003},
  doi = {10.1364/ao.42.001191},
  url = {https://pubmed.ncbi.nlm.nih.gov/12638876/},
  note = {Source identifier: 12638876}
}