To cite in publications use:

Hai Qian (2012). magnets: Micro-magnet Array Dynamics Simulation Package. R package version 0.2.1.

Corresponding BibTeX entry:

  @Manual{,
    title = {magnets: Micro-magnet Array Dynamics Simulation Package},
    author = {Hai Qian},
    year = {2012},
    note = {R package version 0.2.1.},
    url = {http://magnets.r-forge.r-project.org/},
  }