| article html file updated | 8 February 2020 09:46 CET | Update | https://www.mdpi.com/2073-4360/9/7/260 |
| article html file updated | 3 May 2019 14:41 CEST | Update | - |
| article html file updated | 15 March 2019 10:15 CET | Update | - |
| article html file updated | 2 August 2017 04:21 CEST | Update | - |
| article html file updated | 30 June 2017 14:51 CEST | Original file | - |
| article xml uploaded. | 30 June 2017 14:49 CEST | Update | https://www.mdpi.com/2073-4360/9/7/260/xml |
| article pdf uploaded. | 30 June 2017 14:49 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/7/260/pdf |
