| article html file updated | 7 February 2020 07:03 CET | Update | https://www.mdpi.com/1424-8220/16/4/500 |
| article html file updated | 5 May 2019 19:06 CEST | Update | - |
| article html file updated | 27 March 2019 01:27 CET | Update | - |
| article html file updated | 29 April 2016 04:45 CEST | Update | - |
| article html file updated | 9 April 2016 06:28 CEST | Original file | - |
| article xml uploaded. | 9 April 2016 06:26 CEST | Update | https://www.mdpi.com/1424-8220/16/4/500/xml |
| article pdf uploaded. | 9 April 2016 06:24 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/500/pdf |
