| article html file updated | 6 February 2020 08:08 CET | Update | https://www.mdpi.com/1999-4915/6/3/1454 |
| article html file updated | 7 May 2019 16:52 CEST | Update | - |
| article html file updated | 21 March 2019 14:25 CET | Update | - |
| article html file updated | 20 August 2015 00:53 CEST | Update | - |
| article html file updated | 28 April 2014 11:28 CEST | Original file | - |
| article xml file uploaded | 28 April 2014 11:28 CEST | Original file | https://www.mdpi.com/1999-4915/6/3/1454/xml |
| article pdf uploaded. | 24 March 2014 14:38 CET | Version of Record | https://www.mdpi.com/1999-4915/6/3/1454/pdf |
