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  1. O'Sullivan, David [Author]; Unwin, David [Author]; Unwin, David John [Author]

    Geographic information analysis

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    Hoboken, NJ [u.a.]: Wiley, c 2003

  2. Ferrara, Andreas [Author]; Testa, Patrick A. [Author]; Zhou, Liyang [Author] ; National Bureau of Economic Research

    New Area- and Population-based Geographic Crosswalks for U.S. Counties and Congressional Districts, 1790–2020

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    Cambridge, Mass: National Bureau of Economic Research, March 2024

    Published in: NBER working paper series ; no. w32206