| article html file updated | 8 February 2020 03:10 CET | Update | https://www.mdpi.com/2297-8747/22/2/29 |
| article html file updated | 4 May 2019 03:01 CEST | Update | - |
| article html file updated | 8 April 2017 11:10 CEST | Original file | - |
| article xml uploaded. | 8 April 2017 11:09 CEST | Original file | https://www.mdpi.com/2297-8747/22/2/29/xml |
| article pdf uploaded. | 8 April 2017 11:09 CEST | Version of Record | https://www.mdpi.com/2297-8747/22/2/29/pdf |
