| article html file updated | 9 February 2020 17:30 CET | Update | https://www.mdpi.com/2073-4425/9/5/251 |
| article html file updated | 3 October 2019 13:36 CEST | Update | - |
| article html file updated | 30 April 2019 20:05 CEST | Update | - |
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| article html file updated | 30 May 2018 18:08 CEST | Update | - |
| article pdf uploaded. | 14 May 2018 17:38 CEST | Updated version of record | https://www.mdpi.com/2073-4425/9/5/251/pdf |
| article html file updated | 14 May 2018 17:33 CEST | Original file | - |
| article xml uploaded. | 14 May 2018 17:32 CEST | Original file | https://www.mdpi.com/2073-4425/9/5/251/xml |
