| article html file updated | 9 February 2020 13:29 CET | Update | https://www.mdpi.com/2412-3811/3/2/9 |
| article html file updated | 2 October 2019 12:46 CEST | Update | N/A |
| article html file updated | 1 May 2019 04:10 CEST | Update | N/A |
| article html file updated | 17 April 2019 04:30 CEST | Update | N/A |
| article html file updated | 29 March 2019 14:53 CET | Update | N/A |
| article html file updated | 12 April 2018 08:18 CEST | Original file | N/A |
| article xml uploaded. | 12 April 2018 08:17 CEST | Update | https://www.mdpi.com/2412-3811/3/2/9/xml |
| article pdf uploaded. | 12 April 2018 08:17 CEST | Version of Record | https://www.mdpi.com/2412-3811/3/2/9/pdf |
