| article html file updated | 6 February 2020 15:46 CET | Update | https://www.mdpi.com/2072-6651/7/2/478 |
| article html file updated | 7 May 2019 01:20 CEST | Update | - |
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| article html file updated | 21 August 2015 07:12 CEST | Update | - |
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| article xml file uploaded | 28 February 2015 03:12 CET | Original file | https://www.mdpi.com/2072-6651/7/2/478/xml |
| article pdf uploaded. | 5 February 2015 14:46 CET | Version of Record | https://www.mdpi.com/2072-6651/7/2/478/pdf |
