| article html file updated | 9 February 2020 04:05 CET | Update | https://www.mdpi.com/1424-8220/18/2/323 |
| article html file updated | 30 September 2019 03:58 CEST | Update | - |
| article html file updated | 2 May 2019 00:05 CEST | Update | - |
| article html file updated | 17 April 2019 22:36 CEST | Update | - |
| article html file updated | 28 March 2019 17:49 CET | Update | - |
| article html file updated | 14 March 2018 20:15 CET | Update | - |
| article html file updated | 24 January 2018 03:26 CET | Original file | - |
| article xml uploaded. | 24 January 2018 03:25 CET | Update | https://www.mdpi.com/1424-8220/18/2/323/xml |
| article xml uploaded. | 23 January 2018 17:59 CET | Update | - |
| article xml uploaded. | 23 January 2018 17:59 CET | Original file | - |
| article pdf uploaded. | 23 January 2018 17:59 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/323/pdf |
