@article{etna_vol59_pp99-115,
  author  = {Gradimir V. Milovanovi&cacute},
  title   = {Orthogonality on the semicircle: old and new results},
  journal = {Electron. Trans. Numer. Anal.},
  volume  = {59},
  year    = {2023},
  pages   = {99--115},
  doi     = {10.1553/etna_vol59s99},
}