To cite ReacTran in publications use:

Karline Soetaert, Filip Meysman (2012). “Reactive transport in aquatic ecosystems: Rapid model prototyping in the open source software R.” Environmental Modelling & Software, 32, 49–60.

Corresponding BibTeX entry:

  @Article{,
    title = {Reactive transport in aquatic ecosystems: Rapid model
      prototyping in the open source software R},
    author = {{Karline Soetaert} and {Filip Meysman}},
    journal = {Environmental Modelling & Software},
    year = {2012},
    volume = {32},
    pages = {49--60},
  }