To cite textir in publications use the most appropriate of:

M. A. Taddy (2012) Multinomial Inverse Regression for Text Analysis, http://arxiv.org/abs/1012.2098
M. A. Taddy (AISTATS 2012) On Estimation of Topic Models, http://jmlr.csail.mit.edu/proceedings/papers/v22/taddy12/taddy12.pdf

Corresponding BibTeX entries:

  @Unpublished{,
    title = {Multinomial Inverse Regression for Text Analysis},
    author = {M. A. Taddy},
    year = {2012},
    note = {http://arxiv.org/abs/1012.2098},
  }
  @InProceedings{,
    title = {On Estimation for Topic Models},
    author = {M. A. Taddy},
    year = {2012},
    booktitle = {AISTATS},
    note =
      {http://jmlr.csail.mit.edu/proceedings/papers/v22/taddy12/taddy12.pdf},
  }