| article html file updated | 7 February 2020 06:57 CET | Update | https://www.mdpi.com/1424-8220/16/4/487 |
| article html file updated | 5 May 2019 19:20 CEST | Update | - |
| article html file updated | 27 March 2019 01:16 CET | Update | - |
| article html file updated | 29 April 2016 04:37 CEST | Update | - |
| article html file updated | 7 April 2016 11:28 CEST | Original file | - |
| article xml uploaded. | 7 April 2016 11:27 CEST | Update | https://www.mdpi.com/1424-8220/16/4/487/xml |
| article pdf uploaded. | 7 April 2016 11:27 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/487/pdf |
