| article html file updated | 6 February 2020 11:26 CET | Update | https://www.mdpi.com/1999-4923/6/3/467 |
| article html file updated | 7 May 2019 09:47 CEST | Update | - |
| article html file updated | 21 March 2019 23:01 CET | Update | - |
| article html file updated | 20 August 2015 15:20 CEST | Update | - |
| article html file updated | 9 October 2014 11:24 CEST | Original file | - |
| article xml file uploaded | 9 October 2014 11:24 CEST | Original file | https://www.mdpi.com/1999-4923/6/3/467/xml |
| article pdf uploaded. | 13 August 2014 15:30 CEST | Version of Record | https://www.mdpi.com/1999-4923/6/3/467/pdf |
