| article html file updated | 7 February 2020 07:05 CET | Update | https://www.mdpi.com/1424-8220/16/4/516 |
| article html file updated | 5 May 2019 19:00 CEST | Update | - |
| article html file updated | 27 March 2019 01:31 CET | Update | - |
| article html file updated | 29 April 2016 04:53 CEST | Update | - |
| article html file updated | 11 April 2016 08:04 CEST | Original file | - |
| article xml uploaded. | 11 April 2016 08:03 CEST | Update | https://www.mdpi.com/1424-8220/16/4/516/xml |
| article pdf uploaded. | 11 April 2016 08:03 CEST | Version of Record | https://www.mdpi.com/1424-8220/16/4/516/pdf |
