| article html file updated | 6 February 2020 05:54 CET | Update | https://www.mdpi.com/1660-4601/10/12/6687 |
| article html file updated | 7 May 2019 21:26 CEST | Update | N/A |
| article html file updated | 21 March 2019 08:35 CET | Update | N/A |
| article html file updated | 19 August 2015 11:53 CEST | Update | N/A |
| article html file updated | 7 January 2014 13:17 CET | Original file | N/A |
| article xml file uploaded | 7 January 2014 13:17 CET | Original file | https://www.mdpi.com/1660-4601/10/12/6687/xml |
| article pdf uploaded. | 2 December 2013 12:05 CET | Version of Record | https://www.mdpi.com/1660-4601/10/12/6687/pdf |
