| article html file updated | 8 February 2020 07:54 CET | Update | https://www.mdpi.com/2071-1050/9/6/995 |
| article html file updated | 25 September 2019 06:26 CEST | Update | - |
| article html file updated | 3 May 2019 18:10 CEST | Update | - |
| article html file updated | 28 June 2017 14:45 CEST | Update | - |
| article html file updated | 9 June 2017 13:15 CEST | Original file | - |
| article xml uploaded. | 9 June 2017 13:14 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/995/xml |
| article pdf uploaded. | 9 June 2017 13:14 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/995/pdf |
