@misc{indiciaeee3f166c0419,
  title = {Elliptical concentrators.},
  author = {Angel Garcia-Botella and Antonio Alvarez Fernandez-Balbuena and Eusebio Bernabeu},
  year = {2006},
  doi = {10.1364/ao.45.007622},
  url = {https://pubmed.ncbi.nlm.nih.gov/17068595/},
  note = {Source identifier: 17068595}
}