| article html file updated | 6 February 2020 04:15 CET | Update | https://www.mdpi.com/1660-3397/11/9/3381 |
| article html file updated | 8 May 2019 00:44 CEST | Update | - |
| article html file updated | 21 March 2019 04:15 CET | Update | - |
| article html file updated | 17 June 2015 13:00 CEST | Update | - |
| article html file updated | 25 October 2013 09:43 CEST | Original file | - |
| article xml file uploaded | 25 October 2013 09:42 CEST | Original file | https://www.mdpi.com/1660-3397/11/9/3381/xml |
| article pdf uploaded. | 6 September 2013 15:51 CEST | Version of Record | https://www.mdpi.com/1660-3397/11/9/3381/pdf |
