| article html file updated | 6 February 2020 13:07 CET | Update | https://www.mdpi.com/2079-4983/5/4/211 |
| article html file updated | 7 May 2019 06:33 CEST | Update | - |
| article html file updated | 25 March 2019 16:31 CET | Update | - |
| article html file updated | 21 August 2015 00:22 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/2079-4983/5/4/211/xml |
| article pdf uploaded. | 24 October 2014 16:15 CEST | Version of Record | https://www.mdpi.com/2079-4983/5/4/211/pdf |
