| article html file updated | 7 February 2020 18:01 CET | Update | https://www.mdpi.com/1424-8220/16/11/1921 |
| article html file updated | 4 May 2019 22:32 CEST | Update | - |
| article html file updated | 1 December 2016 23:44 CET | Update | - |
| article html file updated | 15 November 2016 10:27 CET | Original file | - |
| article xml uploaded. | 15 November 2016 10:26 CET | Update | https://www.mdpi.com/1424-8220/16/11/1921/xml |
| article xml uploaded. | 15 November 2016 10:26 CET | Update | - |
| article xml uploaded. | 15 November 2016 10:26 CET | Original file | - |
| article pdf uploaded. | 15 November 2016 10:26 CET | Version of Record | https://www.mdpi.com/1424-8220/16/11/1921/pdf |
