| article html file updated | 6 February 2020 10:24 CET | Update | https://www.mdpi.com/1999-4923/6/3/354 |
| article html file updated | 7 May 2019 12:14 CEST | Update | N/A |
| article html file updated | 21 March 2019 20:02 CET | Update | N/A |
| article html file updated | 20 August 2015 11:34 CEST | Update | N/A |
| article html file updated | 9 October 2014 11:24 CEST | Original file | N/A |
| article xml file uploaded | 9 October 2014 11:24 CEST | Original file | https://www.mdpi.com/1999-4923/6/3/354/xml |
| article pdf uploaded. | 2 July 2014 09:23 CEST | Version of Record | https://www.mdpi.com/1999-4923/6/3/354/pdf |
