@inproceedings{HeuermannHarzheimMuehmel2021,
  author    = {Holger Heuermann and Thomas Harzheim and Marc M{\"u}hmel},
  title     = {A maritime harmonic radar search and rescue system using passive and active tags},
  booktitle = {2020 17th European Radar Conference (EuRAD)},
  pages     = {73 -- 76},
  doi       = {10.1109/EuRAD48048.2021.00030},
  year      = {2021},
}