| article html file updated | 6 February 2020 12:31 CET | Update | https://www.mdpi.com/2072-666X/5/4/797 |
| article html file updated | 7 May 2019 07:44 CEST | Update | - |
| article html file updated | 22 March 2019 01:41 CET | Update | - |
| article html file updated | 20 August 2015 21:15 CEST | Original file | - |
| article pdf uploaded. | 29 September 2014 17:19 CEST | Updated version of record | https://www.mdpi.com/2072-666X/5/4/797/pdf |
| article pdf uploaded. | 26 September 2014 15:30 CEST | Version of Record | https://www.mdpi.com/2072-666X/5/4/797/pdf-vor |
