| article html file updated | 6 February 2020 14:03 CET | Update | https://www.mdpi.com/2079-4983/5/4/259 |
| article html file updated | 7 May 2019 04:45 CEST | Update | - |
| article html file updated | 25 March 2019 18:32 CET | Update | - |
| article html file updated | 21 August 2015 02:59 CEST | Update | - |
| article html file updated | 30 December 2014 09:32 CET | Original file | - |
| article xml file uploaded | 30 December 2014 09:32 CET | Original file | https://www.mdpi.com/2079-4983/5/4/259/xml |
| article pdf uploaded. | 28 November 2014 14:05 CET | Version of Record | https://www.mdpi.com/2079-4983/5/4/259/pdf |
