Bibliography (7):

1. Pointer Sentinel Mixture Models

2. Building a Large Annotated Corpus of English: The Penn Treebank

3. https://mattmahoney.net/dc/textdata.html

4. About the Test Data

5. One Billion Word Benchmark for Measuring Progress in Statistical Language Modeling

6. Wikipedia Bibliography:

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

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

   2. Hutter Prize