To cite survivalBIV in publications use:

Ana Moreira, Luis Meira-Machado (2012). survivalBIV: Estimation of the Bivariate Distribution Function for Sequentially Ordered Events Under Univariate Censoring. Journal of Statistical Software, 46(13), 1-16. URL http://www.jstatsoft.org/v46/i13/.

Corresponding BibTeX entry:

  @Article{,
    title = {{survivalBIV}: Estimation of the Bivariate Distribution
      Function for Sequentially Ordered Events Under Univariate
      Censoring},
    author = {Ana Moreira and Lu\'{\i}s Meira-Machado},
    journal = {Journal of Statistical Software},
    year = {2012},
    volume = {46},
    number = {13},
    pages = {1--16},
    url = {http://www.jstatsoft.org/v46/i13/},
  }