@article{adaptiveestimationofthecopulacorrelation,
  title = {Adaptive estimation of the copula correlation matrix for semiparametric elliptical copulas},
  author = {Marten Wegkamp and Yue Zhao},
  year = {2013},
  eprint = {1305.6526},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1305.6526v3},
}