| article html file updated | 6 February 2020 09:59 CET | Update | https://www.mdpi.com/2073-4433/5/2/435 |
| article html file updated | 21 March 2019 18:56 CET | Update | - |
| article html file updated | 20 August 2015 10:02 CEST | Update | - |
| article html file updated | 27 June 2014 05:59 CEST | Original file | - |
| article xml file uploaded | 27 June 2014 05:59 CEST | Original file | https://www.mdpi.com/2073-4433/5/2/435/xml |
| article pdf uploaded. | 19 June 2014 11:06 CEST | Updated version of record | https://www.mdpi.com/2073-4433/5/2/435/pdf |
| article pdf uploaded. | 16 June 2014 15:57 CEST | Version of Record | https://www.mdpi.com/2073-4433/5/2/435/pdf-vor |
