| article html file updated | 7 February 2020 00:57 CET | Update | https://www.mdpi.com/1996-1944/8/11/5416 |
| article html file updated | 6 May 2019 07:06 CEST | Update | - |
| article html file updated | 26 March 2019 14:42 CET | Original file | - |
| article pdf uploaded. | 13 November 2015 15:10 CET | Version of Record | https://www.mdpi.com/1996-1944/8/11/5416/pdf |
| article xml uploaded. | 13 November 2015 15:10 CET | Original file | https://www.mdpi.com/1996-1944/8/11/5416/xml |
