| article html file updated | 7 February 2020 18:09 CET | Update | https://www.mdpi.com/2073-4441/8/11/540 |
| article html file updated | 4 May 2019 22:16 CEST | Update | - |
| article html file updated | 30 November 2016 10:56 CET | Update | - |
| article html file updated | 17 November 2016 10:32 CET | Original file | - |
| article xml uploaded. | 17 November 2016 10:31 CET | Update | https://www.mdpi.com/2073-4441/8/11/540/xml |
| article xml uploaded. | 17 November 2016 10:31 CET | Original file | - |
| article pdf uploaded. | 17 November 2016 10:31 CET | Version of Record | https://www.mdpi.com/2073-4441/8/11/540/pdf |
