1. Ackley, D. H., Hinton, G. E., & Sejnowski, T. J. (1985). A learning algorithm for Boltzmann machines. Cognitive Science, 9, 147–169.
2. Akiyama, Y., Yamashita, A., Kajiura, M., & Aiso, H. (1989). Combinatorial optimization with Gaussian machines. In Proceedings of International Joint Conference on Neural Networks (pp. 533–540). Washington, DC.
3. Attias, H. (1999). Inferring parameters and structure of latent variable models by variational Bayes. In Proceedings of the 15th Annual Conference on Uncertainty in AI (pp. 21–30).
4. Azencott, R., Doutriaux, A., & Younes, L. (1993). Synchronous Boltzmann machines and curve identification tasks. Network, 4, 461–480.
5. Baldi, P., & Pineda, F. (1991). Contrastive learning and neural oscillations. Neural Computation, 3(4), 526–545.