| article html file updated | 6 February 2020 14:29 CET | Update | https://www.mdpi.com/1424-8247/7/12/1049 |
| article html file updated | 7 May 2019 03:55 CEST | Update | - |
| article html file updated | 25 March 2019 19:19 CET | Update | - |
| article html file updated | 21 August 2015 04:12 CEST | Update | - |
| article html file updated | 26 December 2014 11:32 CET | Original file | - |
| article xml file uploaded | 26 December 2014 11:32 CET | Original file | https://www.mdpi.com/1424-8247/7/12/1049/xml |
| article pdf uploaded. | 16 December 2014 09:33 CET | Updated version of record | https://www.mdpi.com/1424-8247/7/12/1049/pdf |
| article pdf uploaded. | 15 December 2014 13:31 CET | Version of Record | https://www.mdpi.com/1424-8247/7/12/1049/pdf-vor |
