ews, 33 (7), 751-771.</p>
<p>Wang, W. and M. T. Wells (2000). Model selection and semiparametric
inference for bivariate failure-time data. Journal of the American
Statistical Association, 95 (449), 62-72.</p>
<p>Genest, C., Quessy, J. F., and Remillard, B. (2006). Goodness-of-fit
Procedures for Copula Models Based on the Probability Integral Transformation.
Scandinavian Journal of Statistics, 33(2), 337-366.
Luo J. (2011). Stepwise estimation of D-vines with arbitrary specified
copula pairs and EDA tools. 