| article html file updated | 7 February 2020 00:05 CET | Update | https://www.mdpi.com/2073-4433/6/10/1559 |
| article html file updated | 6 May 2019 08:42 CEST | Update | - |
| article html file updated | 26 March 2019 13:07 CET | Update | - |
| article html file updated | 2 November 2015 10:51 CET | Original file | - |
| article xml file uploaded | 2 November 2015 10:51 CET | Original file | https://www.mdpi.com/2073-4433/6/10/1559/xml |
| article pdf uploaded. | 22 October 2015 12:43 CEST | Version of Record | https://www.mdpi.com/2073-4433/6/10/1559/pdf |
