| article html file updated | 6 February 2020 05:53 CET | Update | https://www.mdpi.com/1660-3397/11/12/4751 |
| article html file updated | 7 May 2019 21:27 CEST | Update | N/A |
| article html file updated | 21 March 2019 08:34 CET | Update | N/A |
| article html file updated | 19 August 2015 11:49 CEST | Update | N/A |
| article html file updated | 7 January 2014 12:46 CET | Original file | N/A |
| article xml file uploaded | 7 January 2014 12:46 CET | Original file | https://www.mdpi.com/1660-3397/11/12/4751/xml |
| article pdf uploaded. | 2 December 2013 09:42 CET | Version of Record | https://www.mdpi.com/1660-3397/11/12/4751/pdf |
