@article{2010-J-SigPro-HierarchicalMEF,
author={Vincent Garcia and Frank Nielsen and Richard Nock},
title={Simplification and hierarchical representations of mixtures of exponential families},
journal={Signal Processing (Elsevier)},
volume={90},
number={12},
pages={3197-3212},
doi={10.1016/j.sigpro.2010.05.024},
year={2010}
}