| article html file updated | 8 February 2020 16:58 CET | Update | https://www.mdpi.com/2073-4360/9/10/468 |
| article html file updated | 27 September 2019 07:55 CEST | Update | - |
| article html file updated | 3 May 2019 00:28 CEST | Update | - |
| article html file updated | 1 November 2017 02:33 CET | Update | - |
| article html file updated | 23 September 2017 08:16 CEST | Original file | - |
| article xml uploaded. | 23 September 2017 08:15 CEST | Original file | https://www.mdpi.com/2073-4360/9/10/468/xml |
| article pdf uploaded. | 23 September 2017 08:15 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/10/468/pdf |
