| article html file updated | 8 February 2020 03:40 CET | Update | https://www.mdpi.com/1424-8220/17/4/870 |
| article html file updated | 24 September 2019 08:14 CEST | Update | - |
| article html file updated | 4 May 2019 02:04 CEST | Update | - |
| article html file updated | 29 April 2017 14:15 CEST | Update | - |
| article pdf uploaded. | 25 April 2017 09:48 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/870/pdf |
| article html file updated | 20 April 2017 11:12 CEST | Original file | - |
| article xml uploaded. | 20 April 2017 11:10 CEST | Update | https://www.mdpi.com/1424-8220/17/4/870/xml |
| article pdf uploaded. | 20 April 2017 11:10 CEST | Updated version of record | - |
