| article html file updated | 6 February 2020 08:10 CET | Update | https://www.mdpi.com/1424-8247/7/4/366 |
| article html file updated | 7 May 2019 16:48 CEST | Update | - |
| article html file updated | 21 March 2019 14:29 CET | Update | - |
| article html file updated | 20 August 2015 01:04 CEST | Update | - |
| article html file updated | 12 May 2014 15:31 CEST | Original file | - |
| article xml file uploaded | 12 May 2014 15:31 CEST | Original file | https://www.mdpi.com/1424-8247/7/4/366/xml |
| article pdf uploaded. | 24 April 2014 09:43 CEST | Updated version of record | https://www.mdpi.com/1424-8247/7/4/366/pdf |
| article pdf uploaded. | 25 March 2014 15:21 CET | Version of Record | https://www.mdpi.com/1424-8247/7/4/366/pdf-vor |
