| article html file updated | 8 February 2020 16:13 CET | Update | https://www.mdpi.com/2073-4344/7/9/273 |
| article html file updated | 27 September 2019 03:38 CEST | Update | - |
| article html file updated | 3 May 2019 01:56 CEST | Update | - |
| article html file updated | 26 September 2017 06:24 CEST | Update | - |
| article html file updated | 14 September 2017 14:25 CEST | Original file | - |
| article xml uploaded. | 14 September 2017 14:24 CEST | Original file | https://www.mdpi.com/2073-4344/7/9/273/xml |
| article pdf uploaded. | 14 September 2017 14:24 CEST | Version of Record | https://www.mdpi.com/2073-4344/7/9/273/pdf |
