| article html file updated | 8 February 2020 18:50 CET | Update | https://www.mdpi.com/2073-4360/9/10/520 |
| article html file updated | 2 May 2019 20:23 CEST | Update | - |
| article html file updated | 1 November 2017 02:44 CET | Update | - |
| article html file updated | 18 October 2017 15:10 CEST | Original file | - |
| article xml uploaded. | 18 October 2017 15:09 CEST | Update | https://www.mdpi.com/2073-4360/9/10/520/xml |
| article xml uploaded. | 18 October 2017 15:09 CEST | Update | - |
| article xml uploaded. | 18 October 2017 15:09 CEST | Original file | - |
| article pdf uploaded. | 18 October 2017 15:09 CEST | Version of Record | https://www.mdpi.com/2073-4360/9/10/520/pdf |
