If you use idealstan, please cite:

Kubinec, Robert. 2018. Generalized Ideal Point Models for Time-Varying and Missing-Data Inference. Working Paper.

Corresponding BibTeX entry:

  @Misc{,
    title = {Generalized Ideal Point Models for Time-Varying and
      Missing-Data Inference},
    author = {Robert Kubinec},
    note = {Working Paper},
    year = {2018},
  }