| article html file updated | 11 February 2020 13:01 CET | Update | https://www.mdpi.com/2311-5629/5/1/9 |
| article html file updated | 26 April 2019 22:32 CEST | Update | - |
| article html file updated | 12 April 2019 18:22 CEST | Update | - |
| article html file updated | 3 April 2019 13:26 CEST | Update | - |
| article html file updated | 28 February 2019 10:20 CET | Update | - |
| article html file updated | 1 February 2019 10:14 CET | Original file | - |
| article pdf uploaded. | 1 February 2019 10:12 CET | Version of Record | https://www.mdpi.com/2311-5629/5/1/9/pdf |
| article xml uploaded. | 1 February 2019 10:12 CET | Update | https://www.mdpi.com/2311-5629/5/1/9/xml |
| article xml file uploaded | 1 February 2019 10:12 CET | Original file | - |
