| article html file updated | 8 February 2020 10:26 CET | Update | https://www.mdpi.com/2073-4360/9/7/272 |
| article html file updated | 25 September 2019 19:44 CEST | Update | - |
| article html file updated | 3 May 2019 13:27 CEST | Update | - |
| article html file updated | 15 March 2019 10:17 CET | Update | - |
| article html file updated | 2 August 2017 04:23 CEST | Update | - |
| article html file updated | 7 July 2017 13:36 CEST | Original file | - |
| article xml uploaded. | 7 July 2017 13:34 CEST | Original file | https://www.mdpi.com/2073-4360/9/7/272/xml |
| article pdf uploaded. | 7 July 2017 13:34 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/7/272/pdf |
