| article html file updated | 8 February 2020 19:17 CET | Update | https://www.mdpi.com/1999-4907/8/10/404 |
| article html file updated | 27 September 2019 23:16 CEST | Update | - |
| article html file updated | 2 May 2019 19:23 CEST | Update | - |
| article html file updated | 1 November 2017 04:40 CET | Update | - |
| article html file updated | 26 October 2017 22:51 CEST | Original file | - |
| article xml uploaded. | 26 October 2017 03:05 CEST | Update | https://www.mdpi.com/1999-4907/8/10/404/xml |
| article xml uploaded. | 26 October 2017 03:05 CEST | Original file | - |
| article pdf uploaded. | 26 October 2017 03:05 CEST | Updated version of record | https://www.mdpi.com/1999-4907/8/10/404/pdf |
| article pdf uploaded. | 24 October 2017 11:29 CEST | Version of Record | https://www.mdpi.com/1999-4907/8/10/404/pdf-vor |
