| article html file updated | 6 February 2020 05:59 CET | Update | https://www.mdpi.com/1660-4601/10/12/6820 |
| article html file updated | 20 September 2019 04:00 CEST | Update | - |
| article html file updated | 7 May 2019 21:15 CEST | Update | - |
| article html file updated | 21 March 2019 08:51 CET | Update | - |
| article html file updated | 19 August 2015 12:23 CEST | Update | - |
| article html file updated | 7 January 2014 13:18 CET | Original file | - |
| article xml file uploaded | 7 January 2014 13:18 CET | Original file | https://www.mdpi.com/1660-4601/10/12/6820/xml |
| article supplementary file uploaded. | 6 December 2013 15:38 CET | - | https://www.mdpi.com/1660-4601/10/12/6820#supplementary |
| article supplementary file uploaded. | 5 December 2013 09:52 CET | - | https://www.mdpi.com/1660-4601/10/12/6820#supplementary |
| article pdf uploaded. | 5 December 2013 09:51 CET | Version of Record | https://www.mdpi.com/1660-4601/10/12/6820/pdf |