@article{DBLP:journals/csda/ZhaoS06,
  author    = {Qiang Zhao and
               Jianguo Sun},
  title     = {Semiparametric and nonparametric analysis of recurrent events
               with observation gaps},
  journal   = {Computational Statistics {\&} Data Analysis},
  volume    = {51},
  number    = {3},
  year      = {2006},
  pages     = {1924-1933},
  ee        = {http://dx.doi.org/10.1016/j.csda.2005.12.006},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}