| article html file updated | 12 February 2020 09:49 CET | Update | https://www.mdpi.com/1996-1073/12/9/1686 |
| article html file updated | 19 October 2019 12:34 CEST | Update | N/A |
| article html file updated | 24 May 2019 12:01 CEST | Update | N/A |
| article html file updated | 4 May 2019 11:45 CEST | Original file | N/A |
| article pdf uploaded. | 4 May 2019 11:44 CEST | Version of Record | https://www.mdpi.com/1996-1073/12/9/1686/pdf |
| article xml uploaded. | 4 May 2019 11:44 CEST | Update | https://www.mdpi.com/1996-1073/12/9/1686/xml |
| article xml file uploaded | 4 May 2019 11:44 CEST | Original file | N/A |
