| article html file updated | 7 February 2020 01:45 CET | Update | https://www.mdpi.com/1996-1073/8/12/12397 |
| article html file updated | 6 May 2019 05:57 CEST | Update | - |
| article html file updated | 26 March 2019 15:44 CET | Original file | - |
| article pdf uploaded. | 4 December 2015 08:49 CET | Version of Record | https://www.mdpi.com/1996-1073/8/12/12397/pdf |
| article xml uploaded. | 4 December 2015 08:49 CET | Original file | https://www.mdpi.com/1996-1073/8/12/12397/xml |
