When using BayesXsrc in publications, please cite both the BayesXsrc interface and BayesX itself:

Daniel Adler, Thomas Kneib, Stefan Lang, Nikolaus Umlauf, Achim Zeileis (2012). BayesXsrc: R Package Distribution of the BayesX C++ Sources. R package version 2.1-1. URL http://CRAN.R-project.org/package=BayesXsrc

Christiane Belitz, Andreas Brezger, Thomas Kneib, Stefan Lang, Nikolaus Umlauf (2012). BayesX: Software for Bayesian Inference in Structured Additive Regression Models. Version 2.1. URL http://www.BayesX.org/

Corresponding BibTeX entries:

  @Manual{,
    title = {{BayesXsrc}: {R} Package Distribution of the {BayesX}
      {C++} Sources},
    author = {Daniel Adler and Thomas Kneib and Stefan Lang and
      Nikolaus Umlauf and Achim Zeileis},
    year = {2012},
    note = {R package version 2.1-1},
    url = {http://CRAN.R-project.org/package=BayesXsrc},
  }

  @Manual{,
    title = {{BayesX}: Software for {B}ayesian Inference in Structured
      Additive Regression Models},
    author = {Christiane Belitz and Andreas Brezger and Thomas Kneib
      and Stefan Lang and Nikolaus Umlauf},
    year = {2012},
    note = {Version 2.1},
    url = {http://www.BayesX.org/},
  }