To cite rv in publications use:

Kerman, J. and Gelman, A. (2007). Manipulating and Summarizing Posterior Simulations Using Random Variable Objects. Statistics and Computing 17:3, 235-244

Corresponding BibTeX entry:

  @Article{,
    year = {2007},
    journal = {Statistics and Computing},
    volume = {17},
    number = {3},
    pages = {235--244},
    title = {Manipulating and Summarizing Posterior Simulations Using
      Random Variable Objects},
    author = {Jouni Kerman and Andrew Gelman},
  }