| article html file updated | 6 February 2020 04:24 CET | Update | https://www.mdpi.com/1660-3397/11/9/3517 |
| article html file updated | 8 May 2019 00:23 CEST | Update | N/A |
| article html file updated | 21 March 2019 04:38 CET | Update | N/A |
| article html file updated | 17 June 2015 13:16 CEST | Update | N/A |
| article html file updated | 25 October 2013 09:47 CEST | Original file | N/A |
| article xml file uploaded | 25 October 2013 09:47 CEST | Original file | https://www.mdpi.com/1660-3397/11/9/3517/xml |
| article pdf uploaded. | 17 September 2013 11:02 CEST | Version of Record | https://www.mdpi.com/1660-3397/11/9/3517/pdf |
