| article html file updated | 6 February 2020 10:02 CET | Update | https://www.mdpi.com/1996-1073/7/6/3781 |
| article html file updated | 7 May 2019 12:58 CEST | Update | N/A |
| article html file updated | 21 March 2019 19:03 CET | Update | N/A |
| article html file updated | 20 August 2015 10:11 CEST | Update | N/A |
| Correction published | 25 September 2014 00:00 CEST | Correction | http://www.mdpi.com/1996-1073/7/9/6223 |
| article html file updated | 11 July 2014 09:20 CEST | Original file | N/A |
| article xml file uploaded | 11 July 2014 09:19 CEST | Original file | https://www.mdpi.com/1996-1073/7/6/3781/xml |
| article pdf uploaded. | 18 June 2014 08:50 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/6/3781/pdf |
