| article html file updated | 7 February 2020 20:14 CET | Update | https://www.mdpi.com/1424-8220/17/1/19 |
| article html file updated | 22 September 2019 14:49 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:57 CEST | Update | N/A |
| article html file updated | 8 February 2017 08:41 CET | Update | N/A |
| article html file updated | 23 December 2016 13:15 CET | Original file | N/A |
| article xml uploaded. | 23 December 2016 13:13 CET | Update | https://www.mdpi.com/1424-8220/17/1/19/xml |
| article xml uploaded. | 23 December 2016 13:13 CET | Original file | N/A |
| article pdf uploaded. | 23 December 2016 13:13 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/19/pdf |
