| article html file updated | 12 February 2020 07:13 CET | Update | https://www.mdpi.com/2224-2708/8/2/23 |
| article html file updated | 18 October 2019 20:37 CEST | Update | - |
| article html file updated | 5 July 2019 13:17 CEST | Update | - |
| article html file updated | 5 July 2019 08:41 CEST | Update | - |
| article html file updated | 15 May 2019 11:36 CEST | Original file | - |
| article pdf uploaded. | 15 May 2019 11:35 CEST | Updated version of record | https://www.mdpi.com/2224-2708/8/2/23/pdf |
| article xml uploaded. | 15 May 2019 11:35 CEST | Update | https://www.mdpi.com/2224-2708/8/2/23/xml |
| article xml file uploaded | 15 May 2019 11:35 CEST | Update | - |
| article pdf uploaded. | 23 April 2019 14:45 CEST | Version of Record | https://www.mdpi.com/2224-2708/8/2/23/pdf-vor |
| article xml file uploaded | 23 April 2019 14:45 CEST | Original file | - |
