| article html file updated | 8 February 2020 09:56 CET | Update | https://www.mdpi.com/1999-4923/9/3/23 |
| article html file updated | 25 September 2019 17:20 CEST | Update | - |
| article html file updated | 3 May 2019 14:21 CEST | Update | - |
| article html file updated | 30 September 2017 14:25 CEST | Update | - |
| article html file updated | 6 July 2017 08:17 CEST | Original file | - |
| article xml uploaded. | 6 July 2017 08:16 CEST | Update | https://www.mdpi.com/1999-4923/9/3/23/xml |
| article pdf uploaded. | 6 July 2017 08:16 CEST | Updated version of record | https://www.mdpi.com/1999-4923/9/3/23/pdf |
| article pdf uploaded. | 3 July 2017 15:38 CEST | Version of Record | https://www.mdpi.com/1999-4923/9/3/23/pdf-vor |
