| article html file updated | 8 February 2020 07:34 CET | Update | https://www.mdpi.com/2071-1050/9/6/959 |
| article html file updated | 3 May 2019 18:47 CEST | Update | - |
| article html file updated | 28 June 2017 14:40 CEST | Update | - |
| article html file updated | 6 June 2017 13:34 CEST | Original file | - |
| article xml uploaded. | 6 June 2017 13:32 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/959/xml |
| article pdf uploaded. | 6 June 2017 13:32 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/959/pdf |
