| article html file updated | 9 February 2020 06:12 CET | Update | https://www.mdpi.com/1424-8220/18/2/537 |
| article html file updated | 30 September 2019 16:50 CEST | Update | - |
| article html file updated | 1 May 2019 19:23 CEST | Update | - |
| article html file updated | 17 April 2019 18:34 CEST | Update | - |
| article html file updated | 28 March 2019 22:26 CET | Update | - |
| article html file updated | 14 March 2018 19:36 CET | Update | - |
| article html file updated | 10 February 2018 11:11 CET | Original file | - |
| article xml uploaded. | 10 February 2018 11:10 CET | Update | https://www.mdpi.com/1424-8220/18/2/537/xml |
| article xml uploaded. | 10 February 2018 11:10 CET | Update | - |
| article xml uploaded. | 10 February 2018 11:09 CET | Original file | - |
| article pdf uploaded. | 10 February 2018 11:09 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/537/pdf |
