Bidirectional recurrent neural networks, Mike Schuster and Kuldip K. Paliwal, 1997IEEE Transactions on Signal Processing, Vol. 45 (IEEE)DOI: 10.1109/78.650093 - The foundational paper introducing the Bidirectional Recurrent Neural Network architecture.
Deep Learning, Ian Goodfellow, Yoshua Bengio, and Aaron Courville, 2016 (MIT Press) - A comprehensive textbook covering the theoretical foundations and practical applications of deep learning, including detailed sections on recurrent neural networks and their variants.
Stanford CS224n: Natural Language Processing with Deep Learning, Diyi Yang, Tatsunori Hashimoto, 2023 (Stanford University) - Official lecture notes from a renowned university course, offering clear explanations and practical perspectives on RNNs, LSTMs, GRUs, and Bidirectional RNNs in the context of Natural Language Processing.