| article html file updated | 8 February 2020 07:41 CET | Update | https://www.mdpi.com/1424-8220/17/6/1321 |
| article html file updated | 25 September 2019 05:19 CEST | Update | - |
| article html file updated | 3 May 2019 18:36 CEST | Update | - |
| article html file updated | 30 June 2017 11:42 CEST | Update | - |
| article html file updated | 9 June 2017 12:34 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 12:33 CEST | Update | https://www.mdpi.com/1424-8220/17/6/1321/xml |
| article pdf uploaded. | 9 June 2017 12:33 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/6/1321/pdf |
| article pdf uploaded. | 7 June 2017 12:10 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/6/1321/pdf-vor |
