The increasing importance of geographical proximity in knowledge production: an analysis of US patent citations, 1975 – 1997
| Year of publication: |
2008
|
|---|---|
| Authors: | Sonn, Jung Won ; Storper, Michael |
| Published in: |
Environment & planning / A. - London : Pion, ISSN 0308-518X, ZDB-ID 750312x. - Vol. 40.2008, 5, p. 1020-1039
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