| article html file updated | 9 February 2020 01:13 CET | Update | https://www.mdpi.com/1424-8220/18/1/45 |
| article html file updated | 29 September 2019 11:48 CEST | Update | - |
| article html file updated | 2 May 2019 06:05 CEST | Update | - |
| article html file updated | 18 April 2019 04:04 CEST | Update | - |
| article html file updated | 28 March 2019 11:13 CET | Update | - |
| article html file updated | 2 February 2018 10:22 CET | Update | - |
| article html file updated | 26 December 2017 07:44 CET | Original file | - |
| article xml uploaded. | 26 December 2017 07:43 CET | Update | https://www.mdpi.com/1424-8220/18/1/45/xml |
| article xml uploaded. | 26 December 2017 07:43 CET | Original file | - |
| article pdf uploaded. | 26 December 2017 07:43 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/45/pdf |
