| article html file updated | 8 February 2020 14:58 CET | Update | https://www.mdpi.com/1424-8220/17/9/1993 |
| article html file updated | 26 September 2019 20:54 CEST | Update | - |
| article html file updated | 3 May 2019 04:13 CEST | Update | - |
| article html file updated | 30 September 2017 14:41 CEST | Update | - |
| article html file updated | 8 September 2017 12:16 CEST | Update | - |
| article xml uploaded. | 8 September 2017 12:14 CEST | Update | https://www.mdpi.com/1424-8220/17/9/1993/xml |
| article pdf uploaded. | 8 September 2017 12:14 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/9/1993/pdf |
| article html file updated | 31 August 2017 13:44 CEST | Original file | - |
| article xml uploaded. | 31 August 2017 13:42 CEST | Original file | - |
| article pdf uploaded. | 31 August 2017 13:42 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/9/1993/pdf-vor |
