| article html file updated | 7 February 2020 14:41 CET | Update | https://www.mdpi.com/1424-8220/16/9/1451 |
| article html file updated | 5 May 2019 04:40 CEST | Update | N/A |
| article html file updated | 27 September 2016 07:11 CEST | Update | N/A |
| article html file updated | 8 September 2016 13:13 CEST | Original file | N/A |
| article xml uploaded. | 8 September 2016 13:11 CEST | Update | https://www.mdpi.com/1424-8220/16/9/1451/xml |
| article xml uploaded. | 8 September 2016 13:11 CEST | Update | N/A |
| article xml uploaded. | 8 September 2016 13:11 CEST | Update | N/A |
| article xml uploaded. | 8 September 2016 13:11 CEST | Original file | N/A |
| article pdf uploaded. | 8 September 2016 13:11 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/9/1451/pdf |
