| article html file updated | 9 February 2020 01:35 CET | Update | https://www.mdpi.com/1424-8220/18/1/89 |
| article html file updated | 29 September 2019 13:58 CEST | Update | - |
| article html file updated | 2 May 2019 05:17 CEST | Update | - |
| article html file updated | 18 April 2019 03:19 CEST | Update | - |
| article html file updated | 28 March 2019 12:08 CET | Update | - |
| article html file updated | 2 February 2018 10:32 CET | Update | - |
| article html file updated | 30 December 2017 12:27 CET | Original file | - |
| article xml uploaded. | 30 December 2017 12:26 CET | Update | https://www.mdpi.com/1424-8220/18/1/89/xml |
| article xml uploaded. | 30 December 2017 12:26 CET | Original file | - |
| article pdf uploaded. | 30 December 2017 12:26 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/89/pdf |
