| article html file updated | 7 February 2020 17:25 CET | Update | https://www.mdpi.com/2073-4441/8/11/501 |
| article html file updated | 4 May 2019 23:40 CEST | Update | - |
| article html file updated | 30 November 2016 10:50 CET | Update | - |
| article html file updated | 2 November 2016 12:33 CET | Original file | - |
| article xml uploaded. | 2 November 2016 12:32 CET | Update | https://www.mdpi.com/2073-4441/8/11/501/xml |
| article xml uploaded. | 2 November 2016 12:32 CET | Original file | - |
| article pdf uploaded. | 2 November 2016 12:32 CET | Version of Record | https://www.mdpi.com/2073-4441/8/11/501/pdf |
