| article html file updated | 6 February 2020 03:10 CET | Update | https://www.mdpi.com/2072-6643/5/7/2646 |
| article html file updated | 8 May 2019 02:57 CEST | Update | - |
| article html file updated | 21 March 2019 01:10 CET | Update | - |
| article html file updated | 17 June 2015 11:16 CEST | Update | - |
| article html file updated | 9 August 2013 11:59 CEST | Original file | - |
| article xml file uploaded | 9 August 2013 11:59 CEST | Original file | https://www.mdpi.com/2072-6643/5/7/2646/xml |
| article pdf uploaded. | 12 July 2013 13:51 CEST | Version of Record | https://www.mdpi.com/2072-6643/5/7/2646/pdf |
