To site GenSVM in publications use:

Gerrit J.J. van den Burg and Patrick J.F. Groenen (2016). GenSVM: A Generalized Multiclass Support Vector Machine. Journal of Machine Learning Research, 17(225):1--42.

Corresponding BibTeX entry:

  @Article{JMLR:v17:14-526,
    title = {{GenSVM}: A Generalized Multiclass Support Vector
      Machine},
    author = {Gerrit J.J. {van den Burg} and Patrick J.F. Groenen},
    journal = {Journal of Machine Learning Research},
    year = {2016},
    volume = {17},
    number = {225},
    pages = {1-42},
    url = {https://jmlr.org/papers/v17/14-526.html},
  }