| article html file updated | 6 February 2020 04:06 CET | Update | https://www.mdpi.com/1660-4601/10/9/3967 |
| article html file updated | 8 May 2019 01:01 CEST | Update | - |
| article html file updated | 21 March 2019 03:54 CET | Update | - |
| article html file updated | 17 June 2015 12:48 CEST | Update | - |
| article html file updated | 25 October 2013 09:24 CEST | Original file | - |
| article xml file uploaded | 25 October 2013 09:24 CEST | Original file | https://www.mdpi.com/1660-4601/10/9/3967/xml |
| article pdf uploaded. | 30 August 2013 14:57 CEST | Version of Record | https://www.mdpi.com/1660-4601/10/9/3967/pdf |
