| article html file updated | 8 February 2020 15:18 CET | Update | https://www.mdpi.com/2077-1444/8/9/173 |
| article html file updated | 3 May 2019 03:36 CEST | Update | - |
| article html file updated | 30 September 2017 10:05 CEST | Update | - |
| article html file updated | 19 September 2017 12:15 CEST | Update | - |
| article xml uploaded. | 19 September 2017 12:13 CEST | Update | https://www.mdpi.com/2077-1444/8/9/173/xml |
| article pdf uploaded. | 19 September 2017 12:13 CEST | Updated version of record | https://www.mdpi.com/2077-1444/8/9/173/pdf |
| article html file updated | 5 September 2017 04:36 CEST | Original file | - |
| article xml uploaded. | 5 September 2017 04:35 CEST | Original file | - |
| article pdf uploaded. | 5 September 2017 04:35 CEST | Version of Record | https://www.mdpi.com/2077-1444/8/9/173/pdf-vor |
