| article html file updated | 7 February 2020 15:06 CET | Update | https://www.mdpi.com/1424-8220/16/9/1512 |
| article html file updated | 5 May 2019 03:54 CEST | Update | - |
| article html file updated | 27 September 2016 07:33 CEST | Update | - |
| article html file updated | 16 September 2016 10:38 CEST | Original file | - |
| article xml uploaded. | 16 September 2016 10:36 CEST | Update | https://www.mdpi.com/1424-8220/16/9/1512/xml |
| article xml uploaded. | 16 September 2016 10:36 CEST | Original file | - |
| article pdf uploaded. | 16 September 2016 10:36 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/9/1512/pdf |
