| article html file updated | 7 February 2020 15:06 CET | Update | https://www.mdpi.com/1424-8220/16/9/1516 |
| article html file updated | 5 May 2019 03:53 CEST | Update | - |
| article html file updated | 27 September 2016 07:34 CEST | Update | - |
| article html file updated | 21 September 2016 13:25 CEST | Update | - |
| article xml uploaded. | 21 September 2016 13:23 CEST | Update | https://www.mdpi.com/1424-8220/16/9/1516/xml |
| article xml uploaded. | 21 September 2016 13:23 CEST | Update | - |
| article xml uploaded. | 21 September 2016 13:23 CEST | Update | - |
| article pdf uploaded. | 21 September 2016 13:23 CEST | Updated version of record | https://www.mdpi.com/1424-8220/16/9/1516/pdf |
| article html file updated | 16 September 2016 13:52 CEST | Original file | - |
| article xml uploaded. | 16 September 2016 13:50 CEST | Update | - |
| article xml uploaded. | 16 September 2016 13:50 CEST | Update | - |
| article xml uploaded. | 16 September 2016 13:50 CEST | Original file | - |
| article pdf uploaded. | 16 September 2016 13:50 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/9/1516/pdf-vor |
