| article html file updated | 6 February 2020 02:12 CET | Update | https://www.mdpi.com/1660-3397/11/5/1669 |
| article html file updated | 8 May 2019 04:58 CEST | Update | - |
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| article html file updated | 17 June 2015 09:29 CEST | Update | - |
| article html file updated | 6 August 2013 15:50 CEST | Original file | - |
| article xml file uploaded | 6 August 2013 15:50 CEST | Original file | https://www.mdpi.com/1660-3397/11/5/1669/xml |
| article pdf uploaded. | 21 May 2013 16:07 CEST | Version of Record | https://www.mdpi.com/1660-3397/11/5/1669/pdf |
