| article html file updated | 7 February 2020 22:34 CET | Update | https://www.mdpi.com/2071-1050/9/2/176 |
| article html file updated | 23 September 2019 03:20 CEST | Update | - |
| article html file updated | 4 May 2019 12:55 CEST | Update | - |
| article html file updated | 1 March 2017 10:23 CET | Update | - |
| article html file updated | 23 February 2017 09:54 CET | Original file | - |
| article xml uploaded. | 23 February 2017 09:53 CET | Original file | https://www.mdpi.com/2071-1050/9/2/176/xml |
| article pdf uploaded. | 2 February 2017 10:10 CET | Version of Record | https://www.mdpi.com/2071-1050/9/2/176/pdf |
