| article html file updated | 6 February 2020 13:54 CET | Update | https://www.mdpi.com/1660-4601/11/12/12108 |
| article html file updated | 7 May 2019 05:00 CEST | Update | - |
| article html file updated | 25 March 2019 18:15 CET | Update | - |
| article html file updated | 21 August 2015 02:40 CEST | Update | - |
| article html file updated | 26 December 2014 11:28 CET | Original file | - |
| article xml file uploaded | 26 December 2014 11:28 CET | Original file | https://www.mdpi.com/1660-4601/11/12/12108/xml |
| article pdf uploaded. | 26 November 2014 08:31 CET | Updated version of record | https://www.mdpi.com/1660-4601/11/12/12108/pdf |
| article pdf uploaded. | 25 November 2014 14:34 CET | Version of Record | https://www.mdpi.com/1660-4601/11/12/12108/pdf-vor |