| article html file updated | 8 February 2020 14:52 CET | Update | https://www.mdpi.com/2073-4344/7/9/254 |
| article html file updated | 26 September 2019 20:23 CEST | Update | - |
| article html file updated | 3 May 2019 04:25 CEST | Update | - |
| article html file updated | 26 September 2017 06:19 CEST | Update | - |
| article html file updated | 30 August 2017 11:51 CEST | Original file | - |
| article xml uploaded. | 30 August 2017 11:50 CEST | Original file | https://www.mdpi.com/2073-4344/7/9/254/xml |
| article pdf uploaded. | 30 August 2017 11:50 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/9/254/pdf |
