| article html file updated | 7 February 2020 15:07 CET | Update | https://www.mdpi.com/1424-8220/16/9/1518 |
| article html file updated | 5 May 2019 03:51 CEST | Update | - |
| article html file updated | 27 September 2016 07:35 CEST | Update | - |
| article html file updated | 18 September 2016 08:56 CEST | Original file | - |
| article xml uploaded. | 18 September 2016 08:55 CEST | Update | https://www.mdpi.com/1424-8220/16/9/1518/xml |
| article xml uploaded. | 18 September 2016 08:55 CEST | Original file | - |
| article pdf uploaded. | 18 September 2016 08:55 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/9/1518/pdf |
