| article html file updated | 8 February 2020 10:43 CET | Update | https://www.mdpi.com/2073-4441/9/7/502 |
| article html file updated | 25 September 2019 21:11 CEST | Update | - |
| article html file updated | 3 May 2019 12:55 CEST | Update | - |
| article html file updated | 1 August 2017 09:21 CEST | Update | - |
| article html file updated | 11 July 2017 13:45 CEST | Original file | - |
| article xml uploaded. | 11 July 2017 13:44 CEST | Update | https://www.mdpi.com/2073-4441/9/7/502/xml |
| article pdf uploaded. | 11 July 2017 13:44 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/7/502/pdf |
