| article html file updated | 8 February 2020 01:33 CET | Update | https://www.mdpi.com/2297-8747/22/1/27 |
| article html file updated | 23 September 2019 20:16 CEST | Update | - |
| article html file updated | 4 May 2019 06:33 CEST | Update | - |
| article html file updated | 21 March 2017 11:36 CET | Original file | - |
| article xml uploaded. | 21 March 2017 11:35 CET | Original file | https://www.mdpi.com/2297-8747/22/1/27/xml |
| article pdf uploaded. | 21 March 2017 11:35 CET | Updated version of record | https://www.mdpi.com/2297-8747/22/1/27/pdf |
| article pdf uploaded. | 15 March 2017 14:22 CET | Version of Record | https://www.mdpi.com/2297-8747/22/1/27/pdf-vor |
