| article html file updated | 10 February 2020 14:45 CET | Update | https://www.mdpi.com/2410-390X/2/4/20 |
| article html file updated | 28 April 2019 22:17 CEST | Update | - |
| article html file updated | 14 April 2019 17:28 CEST | Update | - |
| article html file updated | 1 April 2019 03:20 CEST | Update | - |
| article html file updated | 9 October 2018 11:25 CEST | Original file | - |
| article pdf uploaded. | 9 October 2018 11:25 CEST | Version of Record | https://www.mdpi.com/2410-390X/2/4/20/pdf |
| article xml uploaded. | 9 October 2018 11:25 CEST | Update | https://www.mdpi.com/2410-390X/2/4/20/xml |
| article xml file uploaded | 9 October 2018 11:25 CEST | Original file | - |
