| article html file updated | 9 February 2020 01:26 CET | Update | https://www.mdpi.com/1424-8220/18/1/73 |
| article html file updated | 29 September 2019 13:04 CEST | Update | - |
| article html file updated | 2 May 2019 05:37 CEST | Update | - |
| article html file updated | 18 April 2019 03:38 CEST | Update | - |
| article html file updated | 28 March 2019 11:46 CET | Update | - |
| article html file updated | 2 February 2018 10:28 CET | Update | - |
| article html file updated | 28 December 2017 14:53 CET | Original file | - |
| article xml uploaded. | 28 December 2017 14:51 CET | Original file | https://www.mdpi.com/1424-8220/18/1/73/xml |
| article pdf uploaded. | 28 December 2017 14:51 CET | Version of Record | https://www.mdpi.com/1424-8220/18/1/73/pdf |
