Tsai, Wei-yann et al., Nonparametric Estimation of a Bivariate Survival Function in the Presence of Censoring, Annals of statistics , 14(4), 1986, pp. 1351-1365
A new family of estimators of a bivariate survival function based on censored vectors is obtained from a decomposition of the bivariate survival function. These estimators are uniformly consistent under bivariate censoring and are self-consistent under univariate censoring.