To cite MNM in publications use:

Klaus Nordhausen, Hannu Oja (2011). Multivariate L1 Methods: The Package MNM. Journal of Statistical Software, 43(5), 1-28. URL http://www.jstatsoft.org/v43/i05/.

Corresponding BibTeX entry:

  @Article{,
    title = {Multivariate $L_1$ Methods: The Package {MNM}},
    author = {Klaus Nordhausen and Hannu Oja},
    journal = {Journal of Statistical Software},
    year = {2011},
    volume = {43},
    number = {5},
    pages = {1--28},
    url = {http://www.jstatsoft.org/v43/i05/},
  }