| article html file updated | 8 February 2020 03:38 CET | Update | https://www.mdpi.com/2071-1050/9/4/611 |
| article html file updated | 24 September 2019 08:04 CEST | Update | N/A |
| article html file updated | 4 May 2019 02:07 CEST | Update | N/A |
| article html file updated | 28 April 2017 11:04 CEST | Update | N/A |
| article html file updated | 14 April 2017 14:38 CEST | Original file | N/A |
| article xml uploaded. | 14 April 2017 14:36 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/611/xml |
| article pdf uploaded. | 14 April 2017 14:36 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/611/pdf |
