| article html file updated | 7 February 2020 22:15 CET | Update | https://www.mdpi.com/1424-8220/17/2/234 |
| article html file updated | 23 September 2019 01:39 CEST | Update | - |
| article html file updated | 4 May 2019 13:33 CEST | Update | - |
| article html file updated | 2 March 2017 11:04 CET | Update | - |
| article html file updated | 25 January 2017 12:13 CET | Original file | - |
| article xml uploaded. | 25 January 2017 12:11 CET | Update | https://www.mdpi.com/1424-8220/17/2/234/xml |
| article xml uploaded. | 25 January 2017 12:11 CET | Original file | - |
| article pdf uploaded. | 25 January 2017 12:11 CET | Version of Record | https://www.mdpi.com/1424-8220/17/2/234/pdf |
