| article html file updated | 6 February 2020 22:03 CET | Update | https://www.mdpi.com/2073-4360/7/8/1471 |
| article html file updated | 6 May 2019 12:53 CEST | Update | - |
| article html file updated | 26 March 2019 09:19 CET | Original file | - |
| article xml file uploaded | 1 September 2015 11:38 CEST | Original file | https://www.mdpi.com/2073-4360/7/8/1471/xml |
| article pdf uploaded. | 24 August 2015 16:41 CEST | Version of Record | https://www.mdpi.com/2073-4360/7/8/1471/pdf |
