| article html file updated | 8 February 2020 19:59 CET | Update | https://www.mdpi.com/2075-4442/5/4/43 |
| article html file updated | 28 September 2019 03:37 CEST | Update | - |
| article html file updated | 2 May 2019 17:45 CEST | Update | - |
| article html file updated | 2 January 2018 14:35 CET | Update | - |
| article html file updated | 1 November 2017 11:44 CET | Original file | - |
| article xml uploaded. | 1 November 2017 11:43 CET | Update | https://www.mdpi.com/2075-4442/5/4/43/xml |
| article xml uploaded. | 1 November 2017 11:43 CET | Original file | - |
| article pdf uploaded. | 1 November 2017 11:43 CET | Updated version of record | https://www.mdpi.com/2075-4442/5/4/43/pdf |
| article pdf uploaded. | 31 October 2017 16:38 CET | Version of Record | https://www.mdpi.com/2075-4442/5/4/43/pdf-vor |
