| article html file updated | 6 February 2020 01:48 CET | Update | https://www.mdpi.com/1424-8247/6/5/634 |
| article html file updated | 8 May 2019 05:44 CEST | Update | - |
| article html file updated | 20 March 2019 21:48 CET | Update | - |
| article html file updated | 17 June 2015 08:54 CEST | Update | - |
| article html file updated | 14 August 2014 12:04 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:04 CEST | Update | https://www.mdpi.com/1424-8247/6/5/634/xml |
| article html file updated | 13 September 2013 17:19 CEST | Original file | - |
| article xml file uploaded | 13 September 2013 17:19 CEST | Original file | - |
| article pdf uploaded. | 29 April 2013 10:35 CEST | Updated version of record | https://www.mdpi.com/1424-8247/6/5/634/pdf |
| article supplementary file uploaded. | 29 April 2013 10:32 CEST | - | https://www.mdpi.com/1424-8247/6/5/634#supplementary |
