| article html file updated | 12 February 2020 10:35 CET | Update | https://www.mdpi.com/2412-3811/4/2/21 |
| article html file updated | 19 October 2019 17:04 CEST | Update | N/A |
| article html file updated | 11 June 2019 11:49 CEST | Original file | N/A |
| article pdf uploaded. | 11 June 2019 11:48 CEST | Updated version of record | https://www.mdpi.com/2412-3811/4/2/21/pdf |
| article xml uploaded. | 11 June 2019 11:48 CEST | Update | https://www.mdpi.com/2412-3811/4/2/21/xml |
| article xml file uploaded | 11 June 2019 11:48 CEST | Update | N/A |
| article pdf uploaded. | 7 May 2019 17:16 CEST | Version of Record | https://www.mdpi.com/2412-3811/4/2/21/pdf-vor |
| article xml file uploaded | 7 May 2019 17:16 CEST | Original file | N/A |
