| article html file updated | 10 February 2020 17:37 CET | Update | https://www.mdpi.com/2410-390X/2/4/21 |
| article html file updated | 28 April 2019 16:33 CEST | Update | - |
| article html file updated | 14 April 2019 11:41 CEST | Update | - |
| article html file updated | 1 April 2019 10:58 CEST | Update | - |
| article pdf uploaded. | 24 October 2018 08:21 CEST | Version of Record | https://www.mdpi.com/2410-390X/2/4/21/pdf |
| article xml uploaded. | 24 October 2018 08:21 CEST | Update | https://www.mdpi.com/2410-390X/2/4/21/xml |
| article xml file uploaded | 24 October 2018 08:21 CEST | Original file | - |
| article html file updated | 24 October 2018 08:21 CEST | Original file | - |
