| article html file updated | 8 February 2020 07:59 CET | Update | https://www.mdpi.com/2071-1050/9/6/1003 |
| article html file updated | 25 September 2019 06:52 CEST | Update | - |
| article html file updated | 3 May 2019 18:00 CEST | Update | - |
| article html file updated | 28 June 2017 14:46 CEST | Update | - |
| article html file updated | 10 June 2017 13:11 CEST | Original file | - |
| article xml uploaded. | 10 June 2017 13:10 CEST | Original file | https://www.mdpi.com/2071-1050/9/6/1003/xml |
| article pdf uploaded. | 10 June 2017 13:10 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/6/1003/pdf |
