| article html file updated | 6 February 2020 02:43 CET | Update | https://www.mdpi.com/1660-3397/11/6/2203 |
| article html file updated | 8 May 2019 03:53 CEST | Update | - |
| article html file updated | 21 March 2019 00:00 CET | Update | - |
| article html file updated | 17 June 2015 10:23 CEST | Update | - |
| article html file updated | 6 August 2013 15:54 CEST | Original file | - |
| article xml file uploaded | 6 August 2013 15:54 CEST | Original file | https://www.mdpi.com/1660-3397/11/6/2203/xml |
| article pdf uploaded. | 19 June 2013 14:35 CEST | Version of Record | https://www.mdpi.com/1660-3397/11/6/2203/pdf |
