| article html file updated | 8 February 2020 10:44 CET | Update | https://www.mdpi.com/2073-4441/9/7/503 |
| article html file updated | 25 September 2019 21:20 CEST | Update | - |
| article html file updated | 3 May 2019 12:52 CEST | Update | - |
| article html file updated | 1 August 2017 09:21 CEST | Update | - |
| article html file updated | 11 July 2017 14:21 CEST | Original file | - |
| article xml uploaded. | 11 July 2017 14:20 CEST | Update | https://www.mdpi.com/2073-4441/9/7/503/xml |
| article pdf uploaded. | 11 July 2017 14:20 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/7/503/pdf |
