| article html file updated | 9 February 2020 00:24 CET | Update | https://www.mdpi.com/2305-7084/1/2/18 |
| article html file updated | 29 September 2019 07:07 CEST | Update | - |
| article html file updated | 2 May 2019 07:52 CEST | Update | - |
| article html file updated | 18 April 2019 05:42 CEST | Update | - |
| article html file updated | 18 December 2017 09:59 CET | Original file | - |
| article xml uploaded. | 18 December 2017 09:58 CET | Update | https://www.mdpi.com/2305-7084/1/2/18/xml |
| article xml uploaded. | 18 December 2017 09:58 CET | Original file | - |
| article pdf uploaded. | 18 December 2017 09:58 CET | Version of Record | https://www.mdpi.com/2305-7084/1/2/18/pdf |
