| article html file updated | 7 February 2020 01:37 CET | Update | https://www.mdpi.com/2071-1050/7/12/15794 |
| article html file updated | 6 May 2019 06:13 CEST | Update | - |
| article html file updated | 26 March 2019 15:29 CET | Original file | - |
| article pdf uploaded. | 2 December 2015 10:05 CET | Version of Record | https://www.mdpi.com/2071-1050/7/12/15794/pdf |
| article xml uploaded. | 2 December 2015 10:05 CET | Original file | https://www.mdpi.com/2071-1050/7/12/15794/xml |
