| article html file updated | 7 February 2020 23:06 CET | Update | https://www.mdpi.com/2297-8747/22/1/17 |
| article html file updated | 23 September 2019 06:23 CEST | Update | - |
| article html file updated | 4 May 2019 11:49 CEST | Update | - |
| article html file updated | 20 February 2017 13:25 CET | Original file | - |
| article xml uploaded. | 20 February 2017 13:23 CET | Update | https://www.mdpi.com/2297-8747/22/1/17/xml |
| article xml uploaded. | 20 February 2017 13:23 CET | Original file | - |
| article pdf uploaded. | 20 February 2017 13:23 CET | Updated version of record | https://www.mdpi.com/2297-8747/22/1/17/pdf |
| article pdf uploaded. | 10 February 2017 14:57 CET | Version of Record | https://www.mdpi.com/2297-8747/22/1/17/pdf-vor |
