[1] Jakob D. Havtorn, Jes Frellsen, Søren Hauberg, Lars Maaløe “Hierarchical VAEs Know What They Don’t Know”
[2] Maaløe, L., Fraccaro, M., Li´evin, V., and Winther, O. “BIVA: A Very Deep Hierarchy of Latent Variables for Generative Modeling” In Proceedings of the 32nd Conference on Neural Information Processing Systems (NeurIPS), pp. 6548?6558, Vancouver, Canada, February 2019
[3] Yilun Du, Shuang Li, Joshua Tenenbaum, Igor Mordatch “Improved Contrastive Divergence Training of Energy-Based Model”
