| article html file updated | 6 February 2020 17:11 CET | Update | https://www.mdpi.com/2073-4425/6/2/163 |
| article html file updated | 6 May 2019 22:48 CEST | Update | - |
| article html file updated | 25 March 2019 23:53 CET | Update | - |
| article html file updated | 21 August 2015 09:44 CEST | Update | - |
| article html file updated | 2 July 2015 12:38 CEST | Original file | - |
| article xml file uploaded | 2 July 2015 12:38 CEST | Original file | https://www.mdpi.com/2073-4425/6/2/163/xml |
| article pdf uploaded. | 31 March 2015 15:22 CEST | Version of Record | https://www.mdpi.com/2073-4425/6/2/163/pdf |
