| article html file updated | 9 February 2020 12:27 CET | Update | https://www.mdpi.com/1996-1073/11/4/831 |
| article html file updated | 2 October 2019 06:25 CEST | Update | - |
| article html file updated | 1 May 2019 06:15 CEST | Update | - |
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| article html file updated | 1 May 2018 09:02 CEST | Update | - |
| article html file updated | 4 April 2018 09:45 CEST | Original file | - |
| article xml uploaded. | 4 April 2018 09:10 CEST | Update | https://www.mdpi.com/1996-1073/11/4/831/xml |
| article pdf uploaded. | 4 April 2018 09:10 CEST | Version of Record | https://www.mdpi.com/1996-1073/11/4/831/pdf |
