| article html file updated | 6 February 2020 10:31 CET | Update | https://www.mdpi.com/2079-6374/4/3/204 |
| article html file updated | 21 March 2019 20:21 CET | Update | - |
| article html file updated | 20 August 2015 12:05 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/2079-6374/4/3/204/xml |
| article pdf uploaded. | 8 July 2014 08:36 CEST | Version of Record | https://www.mdpi.com/2079-6374/4/3/204/pdf |
