| article html file updated | 8 February 2020 02:35 CET | Update | https://www.mdpi.com/1424-8220/17/4/722 |
| article html file updated | 24 September 2019 02:10 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:18 CEST | Update | N/A |
| article html file updated | 29 April 2017 13:41 CEST | Update | N/A |
| article html file updated | 30 March 2017 14:23 CEST | Original file | N/A |
| article xml uploaded. | 30 March 2017 14:22 CEST | Original file | https://www.mdpi.com/1424-8220/17/4/722/xml |
| article pdf uploaded. | 30 March 2017 14:22 CEST | Version of Record | https://www.mdpi.com/1424-8220/17/4/722/pdf |
