| article html file updated | 7 February 2020 17:31 CET | Update | https://www.mdpi.com/2071-1050/8/11/1137 |
| article html file updated | 4 May 2019 23:29 CEST | Update | - |
| article html file updated | 1 December 2016 22:58 CET | Update | - |
| article html file updated | 4 November 2016 09:22 CET | Original file | - |
| article xml uploaded. | 4 November 2016 09:21 CET | Update | https://www.mdpi.com/2071-1050/8/11/1137/xml |
| article xml uploaded. | 4 November 2016 09:21 CET | Original file | - |
| article pdf uploaded. | 4 November 2016 09:21 CET | Version of Record | https://www.mdpi.com/2071-1050/8/11/1137/pdf |
