| article html file updated | 7 February 2020 20:35 CET | Update | https://www.mdpi.com/1424-8220/17/1/73 |
| article html file updated | 22 September 2019 16:46 CEST | Update | N/A |
| article html file updated | 4 May 2019 17:14 CEST | Update | N/A |
| article html file updated | 8 February 2017 09:20 CET | Update | N/A |
| article html file updated | 30 December 2016 11:58 CET | Original file | N/A |
| article xml uploaded. | 30 December 2016 11:57 CET | Original file | https://www.mdpi.com/1424-8220/17/1/73/xml |
| article pdf uploaded. | 30 December 2016 11:57 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/73/pdf |
