| article html file updated | 8 February 2020 22:31 CET | Update | https://www.mdpi.com/2504-186X/2/4/19 |
| article html file updated | 28 September 2019 19:54 CEST | Update | - |
| article html file updated | 2 May 2019 12:04 CEST | Update | - |
| article html file updated | 18 April 2019 09:40 CEST | Update | - |
| article html file updated | 30 November 2017 03:35 CET | Original file | - |
| article xml uploaded. | 30 November 2017 03:34 CET | Update | https://www.mdpi.com/2504-186X/2/4/19/xml |
| article xml uploaded. | 30 November 2017 03:34 CET | Original file | - |
| article pdf uploaded. | 30 November 2017 03:34 CET | Updated version of record | https://www.mdpi.com/2504-186X/2/4/19/pdf |
| article pdf uploaded. | 28 November 2017 16:35 CET | Version of Record | https://www.mdpi.com/2504-186X/2/4/19/pdf-vor |
