To cite MXM in publications use:

  Lagani V, Athineou G, Farcomeni A, Tsagris M, Tsamardinos I (2017).
  “Feature Selection with the R Package MXM: Discovering Statistically
  Equivalent Feature Subsets.” _Journal of Statistical Software_,
  *80*(7). doi:10.18637/jss.v080.i07
  <https://doi.org/10.18637/jss.v080.i07>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Feature Selection with the {R} Package {MXM}: Discovering 
Statistically Equivalent Feature Subsets},
    author = {Vincenzo Lagani and Giorgos Athineou and Alessio Farcomeni and Michail Tsagris and Ioannis Tsamardinos},
    journal = {Journal of Statistical Software},
    year = {2017},
    volume = {80},
    number = {7},
    doi = {10.18637/jss.v080.i07},
  }