Nasraoui, Osmar Zaiane, Myra Spiliopoulou, Bamshad Mobasher, Philip Yu, Brij Masand. p. 92 — 109. Berlin Heidelberg: Springer-Verlag. Jansen, B.J., Berkheiser, W, Spink, A., and Pedersen, J. (2007) How people search for governmental information on the Web. In: Encyclopedia of Digital Government. Editors: A