| article html file updated | 8 February 2020 08:36 CET | Update | https://www.mdpi.com/1424-8220/17/6/1426 |
| article html file updated | 25 September 2019 10:06 CEST | Update | N/A |
| article html file updated | 3 May 2019 16:51 CEST | Update | N/A |
| article html file updated | 30 June 2017 12:01 CEST | Update | N/A |
| article html file updated | 20 June 2017 03:13 CEST | Original file | N/A |
| article xml uploaded. | 20 June 2017 03:12 CEST | Original file | https://www.mdpi.com/1424-8220/17/6/1426/xml |
| article pdf uploaded. | 20 June 2017 03:12 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/6/1426/pdf |
