| article html file updated | 6 February 2020 07:43 CET | Update | https://www.mdpi.com/1424-8247/7/3/311 |
| article html file updated | 7 May 2019 17:43 CEST | Update | - |
| article html file updated | 21 March 2019 13:25 CET | Update | - |
| article html file updated | 19 August 2015 22:44 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/1424-8247/7/3/311/xml |
| article html file updated | 28 April 2014 11:01 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 11:01 CEST | Original file | - |
| article supplementary file uploaded. | 6 March 2014 08:19 CET | - | https://www.mdpi.com/1424-8247/7/3/311#supplementary |
| article pdf uploaded. | 5 March 2014 14:43 CET | Version of Record | https://www.mdpi.com/1424-8247/7/3/311/pdf |
