| article html file updated | 6 February 2020 05:43 CET | Update | https://www.mdpi.com/2076-328X/3/4/662 |
| article html file updated | 20 September 2019 03:29 CEST | Update | - |
| article html file updated | 7 May 2019 21:46 CEST | Update | - |
| article html file updated | 21 March 2019 08:07 CET | Update | - |
| article html file updated | 19 August 2015 10:35 CEST | Update | - |
| article html file updated | 26 August 2014 03:57 CEST | Original file | - |
| article xml file uploaded | 26 August 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-328X/3/4/662/xml |
| article pdf uploaded. | 25 November 2013 09:35 CET | Updated version of record | https://www.mdpi.com/2076-328X/3/4/662/pdf |
| article pdf uploaded. | 22 November 2013 12:11 CET | Version of Record | https://www.mdpi.com/2076-328X/3/4/662/pdf-vor |
