@article{ma_genton_2004, title={Flexible class of skew-symmetric distributions}, volume={31}, number={3}, journal={Scandinavian Journal of Statistics: Theory and Applications}, author={Ma, Y. Y. and Genton, M. G.}, year={2004}, pages={459–468} }
 @inbook{ma_genton_davidian_2004, title={Linear mixed effects models with flexible generalized skew-elliptical random effects}, ISBN={1584884312}, booktitle={Skew-elliptical distibutions and their applications: A journey beyond normality}, publisher={Boca Raton, FL: Chapman & Hall/CRC}, author={Ma, Y. Y. and Genton, M. G. and Davidian, M.}, year={2004} }
 @article{tsiatis_ma_2004, title={Locally efficient semiparametric estimators for functional measurement error models}, volume={91}, number={4}, journal={Biometrika}, author={Tsiatis, A. A. and Ma, Y. Y.}, year={2004}, pages={835–848} }