| article html file updated | 8 February 2020 10:11 CET | Update | https://www.mdpi.com/2073-4441/9/7/491 |
| article html file updated | 25 September 2019 18:36 CEST | Update | - |
| article html file updated | 3 May 2019 13:53 CEST | Update | - |
| article html file updated | 1 August 2017 09:23 CEST | Update | - |
| article html file updated | 5 July 2017 14:30 CEST | Original file | - |
| article xml uploaded. | 5 July 2017 14:29 CEST | Original file | https://www.mdpi.com/2073-4441/9/7/491/xml |
| article pdf uploaded. | 5 July 2017 14:29 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/7/491/pdf |
