| article html file updated | 7 February 2020 21:19 CET | Update | https://www.mdpi.com/2073-4360/9/1/24 |
| article html file updated | 22 September 2019 20:32 CEST | Update | - |
| article html file updated | 4 May 2019 15:39 CEST | Update | - |
| article html file updated | 18 March 2019 05:50 CET | Update | - |
| article html file updated | 7 February 2017 10:30 CET | Update | - |
| article html file updated | 12 January 2017 10:03 CET | Original file | - |
| article xml uploaded. | 12 January 2017 10:02 CET | Original file | https://www.mdpi.com/2073-4360/9/1/24/xml |
| article pdf uploaded. | 12 January 2017 10:02 CET | Version of Record | https://www.mdpi.com/2073-4360/9/1/24/pdf |
