Councill, Isaac G.; Giles, C. Lee; Han, Hui; Manavoglu, Eren (2005). "Automatic acknowledgement indexing: expanding the semantics of contribution in the CiteSeer digital library". Proceedings of the 3rd international conference on Knowledge capture. K-CAP '05. pp. 19–26. CiteSeerX10.1.1.59.1661. doi:10.1145/1088622.1088627. ISBN1-59593-163-5.
Councill, Isaac G.; Giles, C. Lee; Han, Hui; Manavoglu, Eren (2005). "Automatic acknowledgement indexing: expanding the semantics of contribution in the CiteSeer digital library". Proceedings of the 3rd international conference on Knowledge capture. K-CAP '05. pp. 19–26. CiteSeerX10.1.1.59.1661. doi:10.1145/1088622.1088627. ISBN1-59593-163-5.