| article html file updated | 7 February 2020 14:18 CET | Update | https://www.mdpi.com/2071-1050/8/9/880 |
| article html file updated | 5 May 2019 05:20 CEST | Update | N/A |
| article html file updated | 27 March 2019 15:44 CET | Update | N/A |
| article html file updated | 27 September 2016 05:15 CEST | Update | N/A |
| article html file updated | 1 September 2016 12:38 CEST | Original file | N/A |
| article xml uploaded. | 1 September 2016 12:37 CEST | Original file | https://www.mdpi.com/2071-1050/8/9/880/xml |
| article pdf uploaded. | 1 September 2016 12:37 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/9/880/pdf |
