| article html file updated | 12 February 2020 11:50 CET | Update | https://www.mdpi.com/2305-7084/3/2/50 |
| article html file updated | 20 October 2019 00:00 CEST | Update | - |
| article html file updated | 12 May 2019 12:40 CEST | Original file | - |
| article pdf uploaded. | 12 May 2019 12:39 CEST | Version of Record | https://www.mdpi.com/2305-7084/3/2/50/pdf |
| article xml uploaded. | 12 May 2019 12:39 CEST | Update | https://www.mdpi.com/2305-7084/3/2/50/xml |
| article xml file uploaded | 12 May 2019 12:39 CEST | Original file | - |
