| article html file updated | 8 February 2020 15:03 CET | Update | https://www.mdpi.com/1424-8220/17/9/2007 |
| article html file updated | 26 September 2019 21:22 CEST | Update | - |
| article html file updated | 3 May 2019 04:03 CEST | Update | - |
| article html file updated | 30 September 2017 14:43 CEST | Update | - |
| article html file updated | 5 September 2017 04:56 CEST | Original file | - |
| article xml uploaded. | 5 September 2017 04:55 CEST | Original file | https://www.mdpi.com/1424-8220/17/9/2007/xml |
| article pdf uploaded. | 5 September 2017 04:55 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/9/2007/pdf |
| article pdf uploaded. | 1 September 2017 12:48 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/2007/pdf-vor |
