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Lai, K.-K.; Wu, S.-J.: Using the patent co-citation approach to establish a new patent classification system (2005)
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Cetintas, S.; Si, L.: Effective query generation and postprocessing strategies for prior art patent search (2012)
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Kim, J.-H.; Choi, K.-S.: Patent document categorization based on semantic structural information (2007)
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Huang, M.-H.; Huang, W.-T.; Chang, C.-C.; Chen, D. Z.; Lin, C.-P.: The greater scattering phenomenon beyond Bradford's law in patent citation (2014)
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Yan, B.; Luo, J.: Filtering patent maps for visualization of diversification paths of inventors and organizations (2017)
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