| article html file updated | 9 February 2020 07:16 CET | Update | https://www.mdpi.com/1424-8220/18/2/647 |
| article html file updated | 30 September 2019 23:00 CEST | Update | - |
| article html file updated | 1 May 2019 17:06 CEST | Update | - |
| article html file updated | 17 April 2019 16:29 CEST | Update | - |
| article html file updated | 29 March 2019 00:39 CET | Update | - |
| article html file updated | 14 March 2018 20:07 CET | Update | - |
| article html file updated | 22 February 2018 14:48 CET | Original file | - |
| article xml uploaded. | 22 February 2018 14:47 CET | Update | https://www.mdpi.com/1424-8220/18/2/647/xml |
| article xml uploaded. | 22 February 2018 14:47 CET | Original file | - |
| article pdf uploaded. | 22 February 2018 14:47 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/647/pdf |
