@misc{indiciae9ffc3c178cb2,
  title = {Relation between vestigial-sideband filtering and pi/2 progressive phase shift.},
  author = {Xing Wei and Juerg Leuthold},
  year = {2004},
  doi = {10.1364/ol.29.001599},
  url = {https://pubmed.ncbi.nlm.nih.gov/15309831/},
  note = {Source identifier: 15309831}
}