| article html file updated | 6 February 2020 06:17 CET | Update | https://www.mdpi.com/2072-6643/5/12/5218 |
| article html file updated | 7 May 2019 20:42 CEST | Update | - |
| article html file updated | 21 March 2019 09:40 CET | Update | - |
| article html file updated | 19 August 2015 14:07 CEST | Update | - |
| article html file updated | 7 January 2014 12:37 CET | Original file | - |
| article xml file uploaded | 7 January 2014 12:37 CET | Original file | https://www.mdpi.com/2072-6643/5/12/5218/xml |
| article pdf uploaded. | 18 December 2013 09:25 CET | Version of Record | https://www.mdpi.com/2072-6643/5/12/5218/pdf |
