Li, S., Z. Yu, M. Xiang, and D. Mandic. “Solving General Elliptical Mixture Models through an Approximate Wasserstein Manifold”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 04, Apr. 2020, pp. 4658-66, doi:10.1609/aaai.v34i04.5897.