| article html file updated | 8 February 2020 03:32 CET | Update | https://www.mdpi.com/1424-8220/17/4/852 |
| article html file updated | 24 September 2019 07:23 CEST | Update | - |
| article html file updated | 4 May 2019 02:19 CEST | Update | - |
| article html file updated | 29 April 2017 14:10 CEST | Update | - |
| article html file updated | 14 April 2017 05:38 CEST | Original file | - |
| article xml uploaded. | 14 April 2017 05:37 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/852/xml |
| article pdf uploaded. | 14 April 2017 05:37 CEST | Updated version of record | https://www.mdpi.com/1424-8220/17/4/852/pdf |
