1. Archana Goyal, Vishal Gupta, Manish Kumar, Recent Named Entity Recognition and Classification techniques: A systematic review, Computer Science Review, published by Elsevier, 2018.
2. Krishnanjan Bhattacharjee, Shiva Karthik S, Swati Mehta, Ajai Kumar, Named Entity Recognition: A Survey for Indian Languages, Second International conference on Intelligent Computing, Instrumentation and control Technologies, 2019.
3. Jing Li, Aixin Sun, Jianglei Han, and Chenliang Li, A Survey on Deep Learning for Named Entity Recognition, IEEE Transaction on Knowledge and Data Engineering, 2018.
4. Vikas Yadav, Steven Bethard, A Survey on Recent Advances in Named Entity Recognition from Deep Learning models, proceedings of the 27th international conference on computational linguistics, pages 2145–2158, August, 2018.
5. U. Singh, V. Goyal, G.S. Lehal, Named entity recognition system for Urdu, in: COLING, 2012, pp. 2507– 2518.