| article html file updated | 6 February 2020 04:01 CET | Update | https://www.mdpi.com/1660-3397/11/9/3272 |
| article html file updated | 8 May 2019 01:12 CEST | Update | - |
| article html file updated | 21 March 2019 03:40 CET | Update | - |
| article html file updated | 17 June 2015 12:42 CEST | Update | - |
| article html file updated | 25 October 2013 09:41 CEST | Original file | - |
| article xml file uploaded | 25 October 2013 09:40 CEST | Original file | https://www.mdpi.com/1660-3397/11/9/3272/xml |
| article pdf uploaded. | 27 August 2013 15:22 CEST | Version of Record | https://www.mdpi.com/1660-3397/11/9/3272/pdf |
