| article html file updated | 6 February 2020 15:51 CET | Update | https://www.mdpi.com/2072-6651/7/2/516 |
| article html file updated | 7 May 2019 01:10 CEST | Update | - |
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| article html file updated | 21 August 2015 07:23 CEST | Update | - |
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| article xml file uploaded | 28 February 2015 03:12 CET | Original file | https://www.mdpi.com/2072-6651/7/2/516/xml |
| article pdf uploaded. | 10 February 2015 13:07 CET | Version of Record | https://www.mdpi.com/2072-6651/7/2/516/pdf |
