| article html file updated | 6 February 2020 03:05 CET | Update | https://www.mdpi.com/1999-5903/5/3/355 |
| article html file updated | 8 May 2019 03:06 CEST | Update | - |
| article html file updated | 21 March 2019 00:58 CET | Update | - |
| article html file updated | 17 June 2015 11:05 CEST | Update | - |
| article html file updated | 14 August 2014 11:41 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:41 CEST | Update | https://www.mdpi.com/1999-5903/5/3/355/xml |
| article html file updated | 14 August 2014 11:21 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 11:21 CEST | Original file | - |
| article pdf uploaded. | 9 July 2013 13:45 CEST | Version of Record | https://www.mdpi.com/1999-5903/5/3/355/pdf |
