| article html file updated | 7 February 2020 10:26 CET | Update | https://www.mdpi.com/2071-1050/8/6/580 |
| article html file updated | 5 May 2019 12:26 CEST | Update | - |
| article html file updated | 27 March 2019 07:58 CET | Update | - |
| article html file updated | 29 June 2016 05:40 CEST | Update | - |
| article html file updated | 20 June 2016 15:38 CEST | Original file | - |
| article xml uploaded. | 20 June 2016 15:37 CEST | Original file | https://www.mdpi.com/2071-1050/8/6/580/xml |
| article pdf uploaded. | 20 June 2016 15:37 CEST | Version of Record | https://www.mdpi.com/2071-1050/8/6/580/pdf |
