| article html file updated | 7 February 2020 08:20 CET | Update | https://www.mdpi.com/2077-1444/7/5/51 |
| article html file updated | 5 May 2019 16:30 CEST | Update | - |
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| article xml uploaded. | 17 May 2016 05:33 CEST | Update | https://www.mdpi.com/2077-1444/7/5/51/xml |
| article pdf uploaded. | 17 May 2016 05:33 CEST | Updated version of record | https://www.mdpi.com/2077-1444/7/5/51/pdf |
| article html file updated | 7 May 2016 09:57 CEST | Original file | - |
| article pdf uploaded. | 7 May 2016 09:55 CEST | Version of Record | https://www.mdpi.com/2077-1444/7/5/51/pdf-vor |
