| article html file updated | 8 February 2020 02:41 CET | Update | https://www.mdpi.com/2071-1050/9/4/534 |
| article html file updated | 24 September 2019 02:45 CEST | Update | N/A |
| article html file updated | 4 May 2019 04:05 CEST | Update | N/A |
| article html file updated | 28 April 2017 10:52 CEST | Update | N/A |
| article html file updated | 31 March 2017 12:39 CEST | Original file | N/A |
| article xml uploaded. | 31 March 2017 12:38 CEST | Original file | https://www.mdpi.com/2071-1050/9/4/534/xml |
| article pdf uploaded. | 31 March 2017 12:38 CEST | Version of Record | https://www.mdpi.com/2071-1050/9/4/534/pdf |
