Bibliography (8):

1. Longformer: The Long-Document Transformer

2. BigBird: Transformers for Longer Sequences

3. WaveNet: A Generative Model for Raw Audio

4. Attention Is All You Need

5. Long Range Arena (LRA): A Benchmark for Efficient Transformers

6. Wikipedia Bibliography:

   1. https://en.wikipedia.org/wiki/Language_model  :

      https://en.wikipedia.org/wiki/Language_model

   2. Computational complexity theory

   3. Transformer (deep learning architecture)