| article html file updated | 8 February 2020 19:51 CET | Update | https://www.mdpi.com/2414-4088/1/4/27 |
| article html file updated | 2 May 2019 18:04 CEST | Update | N/A |
| article html file updated | 2 November 2017 05:12 CET | Update | N/A |
| article xml uploaded. | 2 November 2017 05:10 CET | Update | https://www.mdpi.com/2414-4088/1/4/27/xml |
| article xml uploaded. | 2 November 2017 05:10 CET | Update | N/A |
| article xml uploaded. | 2 November 2017 05:10 CET | Update | N/A |
| article pdf uploaded. | 2 November 2017 05:10 CET | Updated version of record | https://www.mdpi.com/2414-4088/1/4/27/pdf |
| article html file updated | 30 October 2017 14:31 CET | Original file | N/A |
| article xml uploaded. | 30 October 2017 14:30 CET | Update | N/A |
| article xml uploaded. | 30 October 2017 14:30 CET | Update | N/A |
| article xml uploaded. | 30 October 2017 14:30 CET | Original file | N/A |
| article pdf uploaded. | 30 October 2017 14:30 CET | Version of Record | https://www.mdpi.com/2414-4088/1/4/27/pdf-vor |