| article html file updated | 6 February 2020 01:55 CET | Update | https://www.mdpi.com/2072-6694/5/2/511 |
| article html file updated | 8 May 2019 05:31 CEST | Update | - |
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| article html file updated | 17 June 2015 09:03 CEST | Update | - |
| article html file updated | 6 August 2013 15:31 CEST | Original file | - |
| article xml file uploaded | 6 August 2013 15:31 CEST | Original file | https://www.mdpi.com/2072-6694/5/2/511/xml |
| article pdf uploaded. | 6 May 2013 15:27 CEST | Version of Record | https://www.mdpi.com/2072-6694/5/2/511/pdf |
