| article html file updated | 7 February 2020 09:54 CET | Update | https://www.mdpi.com/1424-8220/16/6/840 |
| article html file updated | 5 May 2019 13:27 CEST | Update | N/A |
| article html file updated | 27 March 2019 07:00 CET | Update | N/A |
| article html file updated | 29 June 2016 10:36 CEST | Update | N/A |
| article html file updated | 8 June 2016 09:59 CEST | Original file | N/A |
| article xml uploaded. | 8 June 2016 09:57 CEST | Original file | https://www.mdpi.com/1424-8220/16/6/840/xml |
| article pdf uploaded. | 8 June 2016 09:57 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/840/pdf |
