| article html file updated | 7 February 2020 18:22 CET | Update | https://www.mdpi.com/2224-2708/5/4/17 |
| article html file updated | 4 May 2019 21:50 CEST | Update | - |
| article html file updated | 29 December 2016 06:44 CET | Update | - |
| article html file updated | 22 November 2016 07:15 CET | Original file | - |
| article xml uploaded. | 22 November 2016 07:14 CET | Update | https://www.mdpi.com/2224-2708/5/4/17/xml |
| article xml uploaded. | 22 November 2016 07:14 CET | Original file | - |
| article pdf uploaded. | 22 November 2016 07:14 CET | Version of Record | https://www.mdpi.com/2224-2708/5/4/17/pdf |
