To cite mixsmsn in publications use:

Marcos Oliveira Prates, Celso Romulo Barbosa Cabral, Victor Hugo Lachos (2013). mixsmsn: Fitting Finite Mixture of Scale Mixture of Skew-Normal Distributions. Journal of Statistical Software, 54(12), 1-20. URL http://www.jstatsoft.org/v54/i12/.

Corresponding BibTeX entry:

  @Article{,
    title = {{mixsmsn}: Fitting Finite Mixture of Scale Mixture of
      Skew-Normal Distributions},
    author = {Marcos Oliveira Prates and Celso R{\^o}mulo Barbosa
      Cabral and V{\'i}ctor Hugo Lachos},
    journal = {Journal of Statistical Software},
    year = {2013},
    volume = {54},
    number = {12},
    pages = {1--20},
    url = {http://www.jstatsoft.org/v54/i12/},
  }