| article html file updated | 6 February 2020 08:23 CET | Update | https://www.mdpi.com/2072-6694/6/2/771 |
| article html file updated | 7 May 2019 16:21 CEST | Update | - |
| article html file updated | 21 March 2019 15:00 CET | Update | - |
| article html file updated | 20 August 2015 02:12 CEST | Update | - |
| article html file updated | 30 June 2014 09:44 CEST | Original file | - |
| article xml file uploaded | 30 June 2014 09:44 CEST | Original file | https://www.mdpi.com/2072-6694/6/2/771/xml |
| article pdf uploaded. | 3 April 2014 14:37 CEST | Version of Record | https://www.mdpi.com/2072-6694/6/2/771/pdf |
