| article html file updated | 8 February 2020 14:50 CET | Update | https://www.mdpi.com/2073-4425/8/9/215 |
| article html file updated | 26 September 2019 20:10 CEST | Update | - |
| article html file updated | 3 May 2019 04:29 CEST | Update | - |
| article html file updated | 30 September 2017 10:29 CEST | Update | - |
| article html file updated | 30 August 2017 10:38 CEST | Original file | - |
| article xml uploaded. | 30 August 2017 10:37 CEST | Original file | https://www.mdpi.com/2073-4425/8/9/215/xml |
| article pdf uploaded. | 30 August 2017 10:37 CEST | Version of Record | https://www.mdpi.com/2073-4425/8/9/215/pdf |
