| article html file updated | 7 February 2020 08:08 CET | Update | https://www.mdpi.com/2071-1050/8/5/439 |
| article html file updated | 5 May 2019 16:52 CEST | Update | - |
| article html file updated | 27 March 2019 03:39 CET | Update | - |
| article html file updated | 27 May 2016 11:35 CEST | Update | - |
| article html file updated | 4 May 2016 08:42 CEST | Original file | - |
| article xml uploaded. | 4 May 2016 08:41 CEST | Original file | https://www.mdpi.com/2071-1050/8/5/439/xml |
| article pdf uploaded. | 4 May 2016 08:41 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/5/439/pdf |
