To cite FieldSim in publications use:

Alexandre Brouste, Jacques Istas, Sophie Lambert-Lacroix (2007). On Fractional Gaussian Random Fields Simulations. Journal of Statistical Software, 23(1), 1-23. URL http://www.jstatsoft.org/v23/i01/.
Alexandre Brouste, Jacques Istas, Sophie Lambert-Lacroix (2010). On Simulation of Manifold Indexed Fractional Gaussian Fields. Journal of Statistical Software, 36(4), 1-14. URL http://www.jstatsoft.org/v36/i04/.

Corresponding BibTeX entries:

  @Article{,
    title = {On Fractional Gaussian Random Fields Simulations},
    author = {Alexandre Brouste and Jacques Istas and Sophie
      Lambert-Lacroix},
    journal = {Journal of Statistical Software},
    year = {2007},
    volume = {23},
    number = {1},
    pages = {1--23},
    url = {http://www.jstatsoft.org/v23/i01/},
  }
  @Article{,
    title = {On Simulation of Manifold Indexed Fractional Gaussian
      Fields},
    author = {Alexandre Brouste and Jacques Istas and Sophie
      Lambert-Lacroix},
    journal = {Journal of Statistical Software},
    year = {2010},
    volume = {36},
    number = {4},
    pages = {1--14},
    url = {http://www.jstatsoft.org/v36/i04/},
  }