| article html file updated | 7 February 2020 19:06 CET | Update | https://www.mdpi.com/1424-8220/16/12/2068 |
| article html file updated | 4 May 2019 20:18 CEST | Update | - |
| article html file updated | 27 December 2016 12:55 CET | Update | - |
| article html file updated | 5 December 2016 14:18 CET | Original file | - |
| article xml uploaded. | 5 December 2016 14:17 CET | Update | https://www.mdpi.com/1424-8220/16/12/2068/xml |
| article xml uploaded. | 5 December 2016 14:17 CET | Original file | - |
| article pdf uploaded. | 5 December 2016 14:17 CET | Version of Record | https://www.mdpi.com/1424-8220/16/12/2068/pdf |
