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This is an electronic version of an article published in GRAHAM, D.J....et al., 2009. Testing for the distributional effects of national road user charging. International Journal of Sustainable Transportation, 3(1), pp. 18 - 38 [International Journal of Sustainable Transportation] and is available online at: http://dx.doi.org/10.1080/15568310701345386
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Stored only when both papers are in the corpus — 7 citations exist upstream.
Papers that cite the same references — the relational fallback while embeddings are still backfilling.
Imported from OpenAlex (CC0) — nothing here is generated.