| article html file updated | 6 February 2020 11:49 CET | Update | https://www.mdpi.com/1999-4915/6/9/3377 |
| article html file updated | 7 May 2019 09:04 CEST | Update | N/A |
| article html file updated | 21 March 2019 23:53 CET | Update | N/A |
| article html file updated | 20 August 2015 16:41 CEST | Update | N/A |
| article html file updated | 8 October 2014 08:17 CEST | Original file | N/A |
| article xml file uploaded | 8 October 2014 08:17 CEST | Original file | https://www.mdpi.com/1999-4915/6/9/3377/xml |
| article pdf uploaded. | 27 August 2014 11:29 CEST | Version of Record | https://www.mdpi.com/1999-4915/6/9/3377/pdf |
