| article html file updated | 8 February 2020 08:20 CET | Update | https://www.mdpi.com/1424-8220/17/6/1391 |
| article html file updated | 25 September 2019 08:43 CEST | Update | - |
| article html file updated | 3 May 2019 17:22 CEST | Update | - |
| article html file updated | 30 June 2017 11:53 CEST | Update | - |
| article html file updated | 15 June 2017 14:22 CEST | Original file | - |
| article xml uploaded. | 15 June 2017 14:20 CEST | Original file | https://www.mdpi.com/1424-8220/17/6/1391/xml |
| article pdf uploaded. | 15 June 2017 14:20 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/6/1391/pdf |
