To cite textir use the appropriate of:

Taddy, M. (2013) Multinomial Inverse Regression for Text Analysis, http://arxiv.org/abs/1012.2098

Taddy, M. (2013), Distributed Multinomial Regression, arXiv:13

Corresponding BibTeX entries:

  @Article{,
    title = {Multinomial Inverse Regression for Text Analysis},
    author = {Matt Taddy},
    year = {2013},
    journal = {Journal of the American Statistical Association},
    volume = {108},
  }

  @Article{,
    title = {Distributed Multinomial Regression},
    author = {Matt Taddy},
    year = {2013},
    journal = {arXiv:13},
  }