| article html file updated | 7 February 2020 09:43 CET | Update | https://www.mdpi.com/2071-1050/8/6/531 |
| article html file updated | 5 May 2019 13:48 CEST | Update | N/A |
| article html file updated | 27 March 2019 06:36 CET | Update | N/A |
| article html file updated | 29 June 2016 05:26 CEST | Update | N/A |
| article html file updated | 3 June 2016 10:32 CEST | Original file | N/A |
| article xml uploaded. | 3 June 2016 10:30 CEST | Original file | https://www.mdpi.com/2071-1050/8/6/531/xml |
| article pdf uploaded. | 3 June 2016 10:30 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/6/531/pdf |
