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Stathopoulos, Y.; Baker, S.; Rei, M.; Teufel, S.: Variable typing : assigning meaning to variables in mathematical text (2018)
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Fujita, S.: Technology survey and invalidity search : a comparative study of different tasks for Japanese patent document retrieval (2007)
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Kang, I.-S.; Na, S.-H.; Kim, J.; Lee, J.-H.: Cluster-based patent retrieval (2007)
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Fife, E.D.; Husch, L.: ¬The Mathematics Archives : making mathematics easy to find on the Web (1999)
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Fujita, S.: NTCIR-2 as a Rosetta stone in laboratory experiments of IR systems (2005)
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