| article html file updated | 7 February 2020 10:22 CET | Update | https://www.mdpi.com/1424-8220/16/6/906 |
| article html file updated | 5 May 2019 12:35 CEST | Update | - |
| article html file updated | 27 March 2019 07:50 CET | Update | - |
| article html file updated | 29 June 2016 11:05 CEST | Update | - |
| article html file updated | 17 June 2016 14:02 CEST | Original file | - |
| article xml uploaded. | 17 June 2016 14:01 CEST | Original file | https://www.mdpi.com/1424-8220/16/6/906/xml |
| article pdf uploaded. | 17 June 2016 14:01 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/6/906/pdf |
