| article html file updated | 7 February 2020 09:27 CET | Update | https://www.mdpi.com/1996-1944/9/6/426 |
| article html file updated | 5 May 2019 14:19 CEST | Update | - |
| article html file updated | 27 March 2019 06:06 CET | Update | - |
| article html file updated | 28 June 2016 12:11 CEST | Update | - |
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| article html file updated | 28 May 2016 23:31 CEST | Update | - |
| article html file updated | 28 May 2016 14:02 CEST | Original file | - |
| article xml uploaded. | 28 May 2016 14:00 CEST | Update | https://www.mdpi.com/1996-1944/9/6/426/xml |
| article pdf uploaded. | 28 May 2016 14:00 CEST | Version of Record | https://www.mdpi.com/1996-1944/9/6/426/pdf |
