To cite the PopED package in publications use:

  Nyberg J, Ueckert S, Stroemberg EA, Hennig S, Karlsson MO, Hooker AC
  (2012). “PopED: An extended, parallelized, nonlinear mixed effects
  models optimal design tool.” _Computer Methods and Programs in
  Biomedicine_, *108*.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {PopED: An extended, parallelized, nonlinear mixed effects models optimal design tool},
    author = {Joakim Nyberg and Sebastian Ueckert and Eric A Stroemberg and Stefanie Hennig and Mats O Karlsson and Andrew C Hooker},
    journal = {Computer Methods and Programs in Biomedicine},
    year = {2012},
    volume = {108},
  }

  Foracchia M, Hooker AC, Vicini P, Ruggeri A (2004). “POPED, a
  software for optimal experiment design in population kinetics.”
  _Computer Methods and Programs in Biomedicine_, *74*.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {POPED, a software for optimal experiment design in population kinetics},
    author = {Marco Foracchia and Andrew C Hooker and Paolo Vicini and A Ruggeri},
    journal = {Computer Methods and Programs in Biomedicine},
    year = {2004},
    volume = {74},
  }