| article html file updated | 11 February 2020 17:29 CET | Update | https://www.mdpi.com/2227-9067/6/2/30 |
| article html file updated | 15 October 2019 08:37 CEST | Update | - |
| article html file updated | 26 April 2019 13:44 CEST | Update | - |
| article html file updated | 12 April 2019 09:17 CEST | Update | - |
| article html file updated | 4 April 2019 00:22 CEST | Update | - |
| article html file updated | 1 March 2019 07:35 CET | Update | - |
| article html file updated | 23 February 2019 10:32 CET | Original file | - |
| article pdf uploaded. | 23 February 2019 10:30 CET | Updated version of record | https://www.mdpi.com/2227-9067/6/2/30/pdf |
| article xml uploaded. | 23 February 2019 10:30 CET | Update | https://www.mdpi.com/2227-9067/6/2/30/xml |
| article xml file uploaded | 23 February 2019 10:30 CET | Update | - |
| article pdf uploaded. | 20 February 2019 14:38 CET | Version of Record | https://www.mdpi.com/2227-9067/6/2/30/pdf-vor |
| article xml file uploaded | 20 February 2019 14:38 CET | Original file | - |
