| article html file updated | 7 February 2020 10:25 CET | Update | https://www.mdpi.com/1424-8220/16/6/912 |
| article html file updated | 5 May 2019 12:30 CEST | Update | - |
| article html file updated | 27 March 2019 07:55 CET | Update | - |
| article html file updated | 29 June 2016 11:07 CEST | Update | - |
| article html file updated | 18 June 2016 10:39 CEST | Original file | - |
| article xml uploaded. | 18 June 2016 10:37 CEST | Original file | https://www.mdpi.com/1424-8220/16/6/912/xml |
| article pdf uploaded. | 18 June 2016 10:37 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/912/pdf |
