| article html file updated | 6 February 2020 10:55 CET | Update | https://www.mdpi.com/2072-666X/5/3/472 |
| article html file updated | 7 May 2019 11:12 CEST | Update | - |
| article html file updated | 21 March 2019 21:29 CET | Update | - |
| article html file updated | 20 August 2015 13:26 CEST | Original file | - |
| article pdf uploaded. | 22 July 2014 13:41 CEST | Version of Record | https://www.mdpi.com/2072-666X/5/3/472/pdf |
