| article html file updated | 6 February 2020 01:57 CET | Update | https://www.mdpi.com/2072-6694/5/2/519 |
| article html file updated | 8 May 2019 05:26 CEST | Update | - |
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| article html file updated | 17 June 2015 09:05 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/2072-6694/5/2/519/xml |
| article pdf uploaded. | 8 May 2013 10:22 CEST | Version of Record | https://www.mdpi.com/2072-6694/5/2/519/pdf |
