To cite s2net in publications use:

Laria JC, Clemmensen LH, Ersbol BK (2020). “A generalized elastic-net for semi-supervised learning of sparse features.” ., [in-press].

Corresponding BibTeX entry:

  @Article{,
    title = {A generalized elastic-net for semi-supervised learning of
      sparse features},
    author = {Juan C. Laria and Line H. Clemmensen and Bjarne K.
      Ersbol},
    journal = {.},
    year = {2020},
    volume = {[in-press]},
  }