| article html file updated | 7 February 2020 07:28 CET | Update | https://www.mdpi.com/1424-8220/16/4/559 |
| article html file updated | 5 May 2019 18:15 CEST | Update | - |
| article html file updated | 27 March 2019 02:16 CET | Update | - |
| article html file updated | 29 April 2016 05:13 CEST | Update | - |
| article html file updated | 19 April 2016 10:35 CEST | Original file | - |
| article xml uploaded. | 19 April 2016 10:34 CEST | Update | https://www.mdpi.com/1424-8220/16/4/559/xml |
| article pdf uploaded. | 19 April 2016 10:34 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/559/pdf |
