| article html file updated | 7 February 2020 21:30 CET | Update | https://www.mdpi.com/1424-8220/17/1/157 |
| article html file updated | 22 September 2019 21:36 CEST | Update | - |
| article html file updated | 4 May 2019 15:13 CEST | Update | - |
| article html file updated | 8 February 2017 09:57 CET | Update | - |
| article html file updated | 14 January 2017 10:39 CET | Original file | - |
| article xml uploaded. | 14 January 2017 10:37 CET | Update | https://www.mdpi.com/1424-8220/17/1/157/xml |
| article xml uploaded. | 14 January 2017 10:37 CET | Original file | - |
| article pdf uploaded. | 14 January 2017 10:37 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/157/pdf |
