| article html file updated | 7 February 2020 07:36 CET | Update | https://www.mdpi.com/2071-1050/8/4/394 |
| article html file updated | 5 May 2019 17:57 CEST | Update | - |
| article html file updated | 27 March 2019 02:34 CET | Update | - |
| article html file updated | 29 April 2016 06:07 CEST | Update | - |
| article html file updated | 21 April 2016 11:22 CEST | Original file | - |
| article xml uploaded. | 21 April 2016 11:20 CEST | Update | https://www.mdpi.com/2071-1050/8/4/394/xml |
| article pdf uploaded. | 21 April 2016 11:20 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/4/394/pdf |
