Estimation results of the negative binomial spatial interaction model, based on common patents among cities in Beijing-Tianjin-Hebei and Pearl River Delta urban agglomerations (2018–2014).
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Estimation results of the negative binomial spatial interaction model, based on common patents among cities in Beijing-Tianjin-Hebei and Pearl River Delta urban agglomerations (2018–2014).
创建时间：
2023-01-04
