| article html file updated | 8 February 2020 13:48 CET | Update | https://www.mdpi.com/2410-387X/1/2/13 |
| article html file updated | 26 September 2019 14:34 CEST | Update | - |
| article html file updated | 3 May 2019 06:27 CEST | Update | - |
| article html file updated | 27 March 2019 21:22 CET | Update | - |
| article html file updated | 21 August 2017 12:39 CEST | Original file | - |
| article xml uploaded. | 21 August 2017 12:38 CEST | Update | https://www.mdpi.com/2410-387X/1/2/13/xml |
| article xml uploaded. | 21 August 2017 12:38 CEST | Original file | - |
| article pdf uploaded. | 21 August 2017 12:38 CEST | Updated version of record | https://www.mdpi.com/2410-387X/1/2/13/pdf |
| article pdf uploaded. | 17 August 2017 16:10 CEST | Version of Record | https://www.mdpi.com/2410-387X/1/2/13/pdf-vor |
