| article html file updated | 7 February 2020 18:44 CET | Update | https://www.mdpi.com/2073-4441/8/12/555 |
| article html file updated | 4 May 2019 21:05 CEST | Update | - |
| article html file updated | 27 December 2016 11:38 CET | Update | - |
| article html file updated | 29 November 2016 08:49 CET | Original file | - |
| article xml uploaded. | 29 November 2016 08:48 CET | Update | https://www.mdpi.com/2073-4441/8/12/555/xml |
| article xml uploaded. | 29 November 2016 08:48 CET | Original file | - |
| article pdf uploaded. | 29 November 2016 08:48 CET | Version of Record | https://www.mdpi.com/2073-4441/8/12/555/pdf |
