| article html file updated | 7 February 2020 01:44 CET | Update | https://www.mdpi.com/2071-1050/7/12/15805 |
| article html file updated | 6 May 2019 05:58 CEST | Update | - |
| article html file updated | 26 March 2019 15:42 CET | Original file | - |
| article pdf uploaded. | 4 December 2015 08:25 CET | Version of Record | https://www.mdpi.com/2071-1050/7/12/15805/pdf |
| article xml uploaded. | 4 December 2015 08:25 CET | Original file | https://www.mdpi.com/2071-1050/7/12/15805/xml |
