| article html file updated | 6 February 2020 04:16 CET | Update | https://www.mdpi.com/2072-6643/5/9/3496 |
| article html file updated | 20 September 2019 00:51 CEST | Update | - |
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| article html file updated | 25 October 2013 09:54 CEST | Original file | - |
| article xml file uploaded | 25 October 2013 09:53 CEST | Original file | https://www.mdpi.com/2072-6643/5/9/3496/xml |
| article pdf uploaded. | 9 September 2013 14:15 CEST | Version of Record | https://www.mdpi.com/2072-6643/5/9/3496/pdf |
