| article html file updated | 7 February 2020 06:17 CET | Update | https://www.mdpi.com/2071-1050/8/4/296 |
| article html file updated | 5 May 2019 20:39 CEST | Update | - |
| article html file updated | 27 March 2019 00:08 CET | Update | - |
| article html file updated | 29 April 2016 05:38 CEST | Original file | - |
| article xml uploaded. | 23 March 2016 10:57 CET | Original file | https://www.mdpi.com/2071-1050/8/4/296/xml |
| article pdf uploaded. | 23 March 2016 10:57 CET | Version of Record | https://www.mdpi.com/2071-1050/8/4/296/pdf |
