McCallum, A. (2005). Information extraction: Distilling structured data from unstructured text. ACM queue : architecting tomorrow's computing..
Cita Chicago (17th ed.)McCallum, Andrew. "Information Extraction: Distilling Structured Data from Unstructured Text." ACM Queue : Architecting Tomorrow's Computing. 2005.
Cita MLA (9th ed.)McCallum, Andrew. "Information Extraction: Distilling Structured Data from Unstructured Text." ACM Queue : Architecting Tomorrow's Computing., 2005.
Atenció: Aquestes cites poden no estar 100% correctes.