| article html file updated | 7 February 2020 21:31 CET | Update | https://www.mdpi.com/2297-8747/22/1/7 |
| article html file updated | 4 May 2019 15:12 CEST | Update | N/A |
| article pdf uploaded. | 15 January 2017 08:26 CET | Updated version of record | https://www.mdpi.com/2297-8747/22/1/7/pdf |
| article html file updated | 14 January 2017 12:30 CET | Original file | N/A |
| article xml uploaded. | 14 January 2017 12:29 CET | Update | https://www.mdpi.com/2297-8747/22/1/7/xml |
| article xml uploaded. | 14 January 2017 12:29 CET | Original file | N/A |
| article pdf uploaded. | 14 January 2017 12:29 CET | Version of Record | https://www.mdpi.com/2297-8747/22/1/7/pdf-vor |
