| article html file updated | 6 February 2020 00:44 CET | Update | https://www.mdpi.com/2079-7737/2/1/356 |
| article html file updated | 8 May 2019 08:00 CEST | Update | - |
| article html file updated | 20 March 2019 19:05 CET | Update | - |
| article html file updated | 17 June 2015 06:55 CEST | Update | - |
| article html file updated | 18 July 2014 03:53 CEST | Original file | - |
| article xml file uploaded | 18 July 2014 03:53 CEST | Original file | https://www.mdpi.com/2079-7737/2/1/356/xml |
| article pdf uploaded. | 28 February 2013 09:25 CET | Version of Record | https://www.mdpi.com/2079-7737/2/1/356/pdf |
