| article html file updated | 11 February 2020 07:10 CET | Update | https://www.mdpi.com/2076-0760/8/1/9 |
| article html file updated | 12 October 2019 23:38 CEST | Update | - |
| article html file updated | 27 April 2019 10:27 CEST | Update | - |
| article html file updated | 13 April 2019 06:24 CEST | Update | - |
| article html file updated | 2 April 2019 23:13 CEST | Update | - |
| article html file updated | 7 January 2019 12:44 CET | Original file | - |
| article pdf uploaded. | 7 January 2019 12:43 CET | Version of Record | https://www.mdpi.com/2076-0760/8/1/9/pdf |
| article xml uploaded. | 7 January 2019 12:43 CET | Update | https://www.mdpi.com/2076-0760/8/1/9/xml |
| article xml file uploaded | 7 January 2019 12:43 CET | Original file | - |
