| article html file updated | 6 February 2020 11:24 CET | Update | https://www.mdpi.com/2073-4441/6/8/2412 |
| article html file updated | 7 May 2019 09:53 CEST | Update | N/A |
| article html file updated | 21 March 2019 22:54 CET | Update | N/A |
| article html file updated | 20 August 2015 15:09 CEST | Original file | N/A |
| Correction published | 25 September 2014 00:00 CEST | Correction | http://www.mdpi.com/2073-4441/6/9/2847 |
| article pdf uploaded. | 13 August 2014 13:42 CEST | Updated version of record | https://www.mdpi.com/2073-4441/6/8/2412/pdf |
| article pdf uploaded. | 12 August 2014 14:49 CEST | Version of Record | https://www.mdpi.com/2073-4441/6/8/2412/pdf-vor |
