| article html file updated | 7 February 2020 18:47 CET | Update | https://www.mdpi.com/2073-4441/8/12/558 |
| article html file updated | 4 May 2019 20:58 CEST | Update | - |
| article html file updated | 27 December 2016 11:40 CET | Update | - |
| article html file updated | 29 November 2016 12:59 CET | Original file | - |
| article xml uploaded. | 29 November 2016 12:57 CET | Update | https://www.mdpi.com/2073-4441/8/12/558/xml |
| article xml uploaded. | 29 November 2016 12:57 CET | Update | - |
| article xml uploaded. | 29 November 2016 12:57 CET | Original file | - |
| article pdf uploaded. | 29 November 2016 12:57 CET | Version of Record | https://www.mdpi.com/2073-4441/8/12/558/pdf |
