To cite in publications use:

  Anders Nielsen, Casper W. Berg (2014). Estimation of time-varying
  selectivity in stock assessments using state-space models. Fisheries
  Research 158, 96-101. doi:10.1016/j.fishres.2014.01.014

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Estimation of time-varying selectivity in stock assessments using state-space models},
    author = {Anders Nielsen and Casper W. Berg},
    journal = {Fisheries Research},
    year = {2014},
    volume = {158},
    pages = {96--101},
    doi = {10.1016/j.fishres.2014.01.014},
  }

and

  Casper W. Berg, Anders Nielsen (2016). Accounting for correlated
  observations in an age-based state-space stock assessment model. ICES
  Journal of Marine Science 73, 1788-1797. doi:10.1093/icesjms/fsw046

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Accounting for correlated observations in an age-based state-space stock assessment model},
    author = {Casper W. Berg and Anders Nielsen},
    journal = {ICES Journal of Marine Science: Journal du Conseil},
    year = {2016},
    volume = {73},
    pages = {1788--1797},
    doi = {10.1093/icesjms/fsw046},
  }

To cite the reference point estimation method use:

  Albertsen, C. M. and Trijoulet, V. (2020). Model-based estimates of
  reference points in an age-based state-space stock assessment model.
  Fisheries Research, 230, 105618. doi:10.1016/j.fishres.2020.105618

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Model-based estimates of reference points in an age-based state-space stock assessment model},
    author = {Christoffer Moesgaard Albertsen and Vanessa Trijoulet},
    journal = {Fisheries Research},
    year = {2020},
    volume = {230},
    pages = {105618},
    doi = {10.1016/j.fishres.2020.105618},
  }