| article html file updated | 8 February 2020 07:50 CET | Update | https://www.mdpi.com/2073-4441/9/6/412 |
| article html file updated | 25 September 2019 06:11 CEST | Update | - |
| article html file updated | 3 May 2019 18:17 CEST | Update | - |
| article html file updated | 29 June 2017 12:14 CEST | Update | - |
| article html file updated | 9 June 2017 09:54 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 09:53 CEST | Update | https://www.mdpi.com/2073-4441/9/6/412/xml |
| article pdf uploaded. | 9 June 2017 09:53 CEST | Version of Record | https://www.mdpi.com/2073-4441/9/6/412/pdf |
