| article html file updated | 6 February 2020 00:14 CET | Update | https://www.mdpi.com/1999-4923/5/1/107 |
| article html file updated | 8 May 2019 09:15 CEST | Update | - |
| article html file updated | 20 March 2019 17:49 CET | Update | - |
| article html file updated | 17 June 2015 05:52 CEST | Update | - |
| article html file updated | 28 April 2014 11:06 CEST | Update | - |
| article xml file uploaded | 28 April 2014 11:06 CEST | Original file | https://www.mdpi.com/1999-4923/5/1/107/xml |
| article html file updated | 8 February 2013 09:42 CET | Original file | - |
| article pdf uploaded. | 25 January 2013 14:59 CET | Version of Record | https://www.mdpi.com/1999-4923/5/1/107/pdf |
