| article html file updated | 6 February 2020 05:46 CET | Update | https://www.mdpi.com/2076-3921/2/4/370 |
| article html file updated | 7 May 2019 21:41 CEST | Update | - |
| article html file updated | 21 March 2019 08:14 CET | Update | - |
| article html file updated | 19 August 2015 10:54 CEST | Update | - |
| article html file updated | 14 August 2014 11:40 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:40 CEST | Update | https://www.mdpi.com/2076-3921/2/4/370/xml |
| article html file updated | 14 August 2014 11:20 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 11:20 CEST | Original file | - |
| article pdf uploaded. | 26 November 2013 10:29 CET | Version of Record | https://www.mdpi.com/2076-3921/2/4/370/pdf |
