| article html file updated | 8 February 2020 20:45 CET | Update | https://www.mdpi.com/2414-4088/1/4/30 |
| article html file updated | 28 September 2019 08:35 CEST | Update | - |
| article html file updated | 2 May 2019 16:00 CEST | Update | - |
| article html file updated | 13 November 2017 02:36 CET | Update | - |
| article xml uploaded. | 13 November 2017 02:34 CET | Update | https://www.mdpi.com/2414-4088/1/4/30/xml |
| article xml uploaded. | 13 November 2017 02:34 CET | Update | - |
| article pdf uploaded. | 13 November 2017 02:34 CET | Updated version of record | https://www.mdpi.com/2414-4088/1/4/30/pdf |
| article html file updated | 10 November 2017 03:31 CET | Original file | - |
| article xml uploaded. | 10 November 2017 03:29 CET | Update | - |
| article xml uploaded. | 10 November 2017 03:29 CET | Update | - |
| article xml uploaded. | 10 November 2017 03:29 CET | Original file | - |
| article pdf uploaded. | 10 November 2017 03:29 CET | Updated version of record | https://www.mdpi.com/2414-4088/1/4/30/pdf-vor |
| article pdf uploaded. | 9 November 2017 14:36 CET | Version of Record | https://www.mdpi.com/2414-4088/1/4/30/pdf-vor |
