| article html file updated | 8 February 2020 21:00 CET | Update | https://www.mdpi.com/2504-4494/1/2/16 |
| article html file updated | 28 September 2019 10:17 CEST | Update | - |
| article html file updated | 2 May 2019 15:25 CEST | Update | - |
| article html file updated | 13 November 2017 08:48 CET | Original file | - |
| article xml uploaded. | 13 November 2017 08:46 CET | Update | https://www.mdpi.com/2504-4494/1/2/16/xml |
| article xml uploaded. | 13 November 2017 08:46 CET | Original file | - |
| article pdf uploaded. | 13 November 2017 08:46 CET | Version of Record | https://www.mdpi.com/2504-4494/1/2/16/pdf |
