| article html file updated | 9 February 2020 05:37 CET | Update | https://www.mdpi.com/1424-8220/18/2/470 |
| article html file updated | 30 September 2019 13:15 CEST | Update | - |
| article html file updated | 1 May 2019 20:45 CEST | Update | - |
| article html file updated | 17 April 2019 19:45 CEST | Update | - |
| article html file updated | 28 March 2019 21:07 CET | Update | - |
| article html file updated | 14 March 2018 19:11 CET | Update | - |
| article html file updated | 6 February 2018 08:34 CET | Original file | - |
| article xml uploaded. | 6 February 2018 08:32 CET | Update | https://www.mdpi.com/1424-8220/18/2/470/xml |
| article xml uploaded. | 6 February 2018 08:32 CET | Original file | - |
| article pdf uploaded. | 6 February 2018 08:32 CET | Version of Record | https://www.mdpi.com/1424-8220/18/2/470/pdf |
