| article html file updated | 9 February 2020 16:57 CET | Update | https://www.mdpi.com/2224-2708/7/2/20 |
| article html file updated | 3 October 2019 09:58 CEST | Update | - |
| article html file updated | 30 April 2019 21:13 CEST | Update | - |
| article html file updated | 16 April 2019 21:42 CEST | Update | - |
| article html file updated | 29 March 2019 23:14 CET | Update | - |
| article html file updated | 28 June 2018 08:41 CEST | Update | - |
| article html file updated | 15 May 2018 12:38 CEST | Update | - |
| article xml uploaded. | 15 May 2018 12:36 CEST | Update | https://www.mdpi.com/2224-2708/7/2/20/xml |
| article pdf uploaded. | 15 May 2018 12:36 CEST | Updated version of record | https://www.mdpi.com/2224-2708/7/2/20/pdf |
| article html file updated | 9 May 2018 13:31 CEST | Original file | - |
| article pdf uploaded. | 9 May 2018 13:29 CEST | Version of Record | https://www.mdpi.com/2224-2708/7/2/20/pdf-vor |
| article xml file uploaded | 9 May 2018 13:29 CEST | Original file | - |
