| article html file updated | 9 February 2020 00:26 CET | Update | https://www.mdpi.com/2297-8747/22/4/47 |
| article html file updated | 2 May 2019 07:47 CEST | Update | - |
| article html file updated | 18 April 2019 05:37 CEST | Update | - |
| article html file updated | 21 December 2017 08:27 CET | Update | - |
| article xml uploaded. | 21 December 2017 08:26 CET | Update | https://www.mdpi.com/2297-8747/22/4/47/xml |
| article pdf uploaded. | 21 December 2017 08:26 CET | Updated version of record | https://www.mdpi.com/2297-8747/22/4/47/pdf |
| article html file updated | 18 December 2017 15:38 CET | Original file | - |
| article xml uploaded. | 18 December 2017 15:37 CET | Update | - |
| article xml uploaded. | 18 December 2017 15:37 CET | Original file | - |
| article pdf uploaded. | 18 December 2017 15:37 CET | Version of Record | https://www.mdpi.com/2297-8747/22/4/47/pdf-vor |
