File:Evolution of theoretical approaches.png
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Evolution_of_theoretical_approaches.png (244 × 293 pixels, file size: 8 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:40, 13 May 2012 | ![]() | 244 × 293 (8 KB) | commons>Cpccnr |
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