| article html file updated | 11 February 2020 13:43 CET | Update | https://www.mdpi.com/2227-7072/7/1/9 |
| article html file updated | 26 April 2019 21:17 CEST | Update | - |
| article html file updated | 12 April 2019 17:05 CEST | Update | - |
| article html file updated | 10 April 2019 14:57 CEST | Update | - |
| article html file updated | 3 April 2019 15:02 CEST | Update | - |
| article html file updated | 28 February 2019 13:45 CET | Update | - |
| article html file updated | 3 February 2019 10:01 CET | Original file | - |
| article pdf uploaded. | 3 February 2019 09:58 CET | Version of Record | https://www.mdpi.com/2227-7072/7/1/9/pdf |
| article xml uploaded. | 3 February 2019 09:58 CET | Update | https://www.mdpi.com/2227-7072/7/1/9/xml |
| article xml file uploaded | 3 February 2019 09:58 CET | Original file | - |
