| article html file updated | 8 February 2020 06:40 CET | Update | https://www.mdpi.com/1424-8220/17/6/1209 |
| article html file updated | 25 September 2019 00:12 CEST | Update | - |
| article html file updated | 3 May 2019 20:27 CEST | Update | - |
| article html file updated | 30 June 2017 22:26 CEST | Update | - |
| article html file updated | 26 May 2017 12:32 CEST | Update | - |
| article xml uploaded. | 26 May 2017 12:31 CEST | Update | https://www.mdpi.com/1424-8220/17/6/1209/xml |
| article pdf uploaded. | 26 May 2017 12:31 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/6/1209/pdf |
| article html file updated | 25 May 2017 14:19 CEST | Original file | - |
| article pdf uploaded. | 25 May 2017 14:18 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/6/1209/pdf-vor |
