| article html file updated | 7 February 2020 18:34 CET | Update | https://www.mdpi.com/1424-8220/16/12/1990 |
| article html file updated | 4 May 2019 21:27 CEST | Update | - |
| article html file updated | 27 December 2016 12:36 CET | Update | - |
| article html file updated | 24 November 2016 12:40 CET | Original file | - |
| article xml uploaded. | 24 November 2016 12:38 CET | Update | https://www.mdpi.com/1424-8220/16/12/1990/xml |
| article xml uploaded. | 24 November 2016 12:38 CET | Original file | - |
| article pdf uploaded. | 24 November 2016 12:38 CET | Version of Record | https://www.mdpi.com/1424-8220/16/12/1990/pdf |
