| article html file updated | 6 February 2020 11:48 CET | Update | https://www.mdpi.com/2079-6374/4/3/273 |
| article html file updated | 21 March 2019 23:51 CET | Update | - |
| article html file updated | 20 August 2015 16:39 CEST | Update | - |
| article html file updated | 10 November 2014 07:31 CET | Original file | - |
| article xml file uploaded | 10 November 2014 07:31 CET | Original file | https://www.mdpi.com/2079-6374/4/3/273/xml |
| article pdf uploaded. | 27 August 2014 09:26 CEST | Version of Record | https://www.mdpi.com/2079-6374/4/3/273/pdf |
