C. Giles, K. Bollacker, and S. Lawrence. Proceedings of the Third ACM Conference on Digital Libraries, Pittsburgh, PA, USA, page 89--98. New York, NY, USA, ACM, (1998)
M. Valenzuela, V. Ha, and O. Etzioni. Scholarly Big Data: AI Perspectives, Challenges, and Ideas, Papers from the 2015 AAAI Workshop, WS-15-13, page 21--26. Menlo Park, CA, AAAI Press, (2015)
J. Wu, K. Williams, H. Chen, M. Khabsa, C. Caragea, A. Ororbia, D. Jordan, and C. Giles. Proceedings of the Twenty-Eighth AAAI Conference on Artificial Intelligence and the Twenty-Sixth Innovative Applications of Artificial Intelligence Conference, Québec, Canada, page 2930--2937. Association for the Advancement of Artificial Intelligence, (July 2014)