| article html file updated | 7 February 2020 18:11 CET | Update | https://www.mdpi.com/1999-4915/8/11/311 |
| article html file updated | 4 May 2019 22:11 CEST | Update | - |
| article html file updated | 30 November 2016 05:07 CET | Update | - |
| article html file updated | 17 November 2016 12:34 CET | Original file | - |
| article xml uploaded. | 17 November 2016 12:32 CET | Update | https://www.mdpi.com/1999-4915/8/11/311/xml |
| article xml uploaded. | 17 November 2016 12:32 CET | Original file | - |
| article pdf uploaded. | 17 November 2016 12:32 CET | Version of Record | https://www.mdpi.com/1999-4915/8/11/311/pdf |
