| article html file updated | 7 February 2020 21:01 CET | Update | https://www.mdpi.com/1424-8220/17/1/109 |
| article html file updated | 22 September 2019 19:14 CEST | Update | N/A |
| article html file updated | 4 May 2019 16:17 CEST | Update | N/A |
| article html file updated | 8 February 2017 09:43 CET | Update | N/A |
| article html file updated | 9 January 2017 09:26 CET | Original file | N/A |
| article xml uploaded. | 9 January 2017 09:25 CET | Original file | https://www.mdpi.com/1424-8220/17/1/109/xml |
| article pdf uploaded. | 9 January 2017 09:25 CET | Updated version of record | https://www.mdpi.com/1424-8220/17/1/109/pdf |
| article pdf uploaded. | 8 January 2017 10:11 CET | Version of Record | https://www.mdpi.com/1424-8220/17/1/109/pdf-vor |
