K. Balog, F. Radlinski, und S. Arakelyan. Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, Seite 265-274. ACM, (July 2019)
C. Li, C. Quan, L. Peng, Y. Qi, Y. Deng, und L. Wu. Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, Seite 275-284. ACM, (July 2019)