| article html file updated | 8 February 2020 04:00 CET | Update | https://www.mdpi.com/2071-1050/9/4/654 |
| article html file updated | 24 September 2019 10:13 CEST | Update | N/A |
| article html file updated | 4 May 2019 01:26 CEST | Update | N/A |
| article html file updated | 28 April 2017 11:10 CEST | Update | N/A |
| article html file updated | 20 April 2017 12:17 CEST | Original file | N/A |
| article xml uploaded. | 20 April 2017 12:16 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/654/xml |
| article pdf uploaded. | 20 April 2017 12:16 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/654/pdf |
