| article html file updated | 8 February 2020 03:41 CET | Update | https://www.mdpi.com/1424-8220/17/4/873 |
| article html file updated | 24 September 2019 08:20 CEST | Update | - |
| article html file updated | 4 May 2019 02:02 CEST | Update | - |
| article html file updated | 29 April 2017 14:16 CEST | Update | - |
| article html file updated | 18 April 2017 11:57 CEST | Original file | - |
| article xml uploaded. | 18 April 2017 11:56 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/873/xml |
| article pdf uploaded. | 18 April 2017 11:56 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/873/pdf |
| article pdf uploaded. | 15 April 2017 10:40 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/873/pdf-vor |
