| article html file updated | 7 February 2020 01:38 CET | Update | https://www.mdpi.com/2071-1050/7/12/15797 |
| article html file updated | 21 September 2019 07:02 CEST | Update | - |
| article html file updated | 6 May 2019 06:12 CEST | Update | - |
| article html file updated | 26 March 2019 15:30 CET | Original file | - |
| article pdf uploaded. | 2 December 2015 10:10 CET | Version of Record | https://www.mdpi.com/2071-1050/7/12/15797/pdf |
| article xml uploaded. | 2 December 2015 10:10 CET | Original file | https://www.mdpi.com/2071-1050/7/12/15797/xml |
