| article html file updated | 7 February 2020 04:51 CET | Update | https://www.mdpi.com/2071-1050/8/2/192 |
| article html file updated | 5 May 2019 23:41 CEST | Update | - |
| article html file updated | 26 March 2019 21:20 CET | Original file | - |
| article pdf uploaded. | 22 February 2016 11:30 CET | Version of Record | https://www.mdpi.com/2071-1050/8/2/192/pdf |
| article xml uploaded. | 22 February 2016 11:30 CET | Original file | https://www.mdpi.com/2071-1050/8/2/192/xml |
