1Feldman R ,Dagan I. Knowledge Discovery in Textual Databases (KDI), Proceedings of the First International Conference on Knowledge Discovery and Data Mining. CA : AAAI Press, 1995
5G.Gann Xu. Information for corporate IP management. World Patent Information, 2004:(26).
6Poul - Erik Nielsen. Evaluating Patent Portfolios - a Danish Initiative. World Patent Information, 2004 : (26).
7Pakes, A., Griliches, Z,, 1984. Patents and R&D at the Firm Level: a First Look. In: Griliches, Z. (Ed.), R&D, Patents and Productivity. The University of Chicago Press, Chicago, 1998.
8Holger Ernst, Patent Information for Strategic Technology Management. World Patent Information, 2003: (25).