| article html file updated | 6 February 2020 05:55 CET | Update | https://www.mdpi.com/1660-4601/10/12/6721 |
| article html file updated | 20 September 2019 03:52 CEST | Update | - |
| article html file updated | 7 May 2019 21:23 CEST | Update | - |
| article html file updated | 21 March 2019 08:40 CET | Update | - |
| article html file updated | 19 August 2015 12:02 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/1660-4601/10/12/6721/xml |
| article pdf uploaded. | 3 December 2013 09:47 CET | Version of Record | https://www.mdpi.com/1660-4601/10/12/6721/pdf |
