| article html file updated | 6 February 2020 00:22 CET | Update | https://www.mdpi.com/2071-1050/5/2/590 |
| article html file updated | 19 September 2019 17:36 CEST | Update | - |
| article html file updated | 8 May 2019 08:53 CEST | Update | - |
| article html file updated | 20 March 2019 18:10 CET | Update | - |
| article html file updated | 17 June 2015 06:08 CEST | Update | - |
| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Update | https://www.mdpi.com/2071-1050/5/2/590/xml |
| article html file updated | 19 February 2013 14:12 CET | Update | - |
| article xml uploaded. | 19 February 2013 14:12 CET | Original file | - |
| article html file updated | 8 February 2013 09:50 CET | Original file | - |
| article pdf uploaded. | 4 February 2013 11:48 CET | Version of Record | https://www.mdpi.com/2071-1050/5/2/590/pdf |
