| article html file updated | 8 February 2020 12:35 CET | Update | https://www.mdpi.com/2224-2708/6/3/13 |
| article html file updated | 26 September 2019 07:33 CEST | Update | - |
| article html file updated | 3 May 2019 08:52 CEST | Update | - |
| article html file updated | 27 March 2019 18:51 CET | Update | - |
| article html file updated | 30 September 2017 15:29 CEST | Update | - |
| article html file updated | 2 August 2017 13:03 CEST | Original file | - |
| article xml uploaded. | 2 August 2017 13:02 CEST | Original file | https://www.mdpi.com/2224-2708/6/3/13/xml |
| article pdf uploaded. | 2 August 2017 13:02 CEST | Version of Record | https://www.mdpi.com/2224-2708/6/3/13/pdf |
