| article html file updated | 8 February 2020 10:19 CET | Update | https://www.mdpi.com/2073-4360/9/7/270 |
| article html file updated | 25 September 2019 19:13 CEST | Update | - |
| article html file updated | 3 May 2019 13:40 CEST | Update | - |
| article html file updated | 2 August 2017 04:23 CEST | Update | - |
| article html file updated | 6 July 2017 13:48 CEST | Original file | - |
| article xml uploaded. | 6 July 2017 13:46 CEST | Update | https://www.mdpi.com/2073-4360/9/7/270/xml |
| article pdf uploaded. | 6 July 2017 13:46 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/7/270/pdf |
