| article html file updated | 7 February 2020 18:46 CET | Update | https://www.mdpi.com/2073-4441/8/12/557 |
| article html file updated | 4 May 2019 21:02 CEST | Update | - |
| article html file updated | 27 December 2016 11:39 CET | Update | - |
| article html file updated | 29 November 2016 12:21 CET | Original file | - |
| article xml uploaded. | 29 November 2016 12:20 CET | Update | https://www.mdpi.com/2073-4441/8/12/557/xml |
| article xml uploaded. | 29 November 2016 12:20 CET | Original file | - |
| article pdf uploaded. | 29 November 2016 12:20 CET | Version of Record | https://www.mdpi.com/2073-4441/8/12/557/pdf |
