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Chen, C.; Paul, R.J.; O'Keefe, B.: Fitting the Jigsaw of citation : information visualization in domain analysis (2001)
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Zhu, B.; Chen, H.: Information visualization (2004)
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Leydesdorff, L.; Persson, O.: Mapping the geography of science : distribution patterns and networks of relations among cities and institutes (2010)
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Börner, K.; Chen, C.; Boyack, K.W.: Visualizing knowledge domains (2002)
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North, G.W.: Will your library be the spatial data information center of the future? (1989)
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