If you use YAPS, please cite it as

Baktoft H, Gjelland K, Økland F, Thygesen U (2017). “Positioning of aquatic animals based on time-of-arrival and random walk models using YAPS (Yet Another Positioning Solver).” Scientific Reports, 7(1), 14294. doi: 10.1038/s41598-017-14278-z, https://www.nature.com/articles/s41598-017-14278-z.

Corresponding BibTeX entry:

  @Article{,
    title = {Positioning of aquatic animals based on time-of-arrival
      and random walk models using YAPS (Yet Another Positioning
      Solver)},
    journal = {Scientific Reports},
    volume = {7},
    number = {1},
    pages = {14294},
    year = {2017},
    doi = {10.1038/s41598-017-14278-z},
    url = {https://www.nature.com/articles/s41598-017-14278-z},
    author = {H. Baktoft and K.Ø. Gjelland and F. Økland and U.H.
      Thygesen},
  }