| article html file updated | 6 February 2020 12:56 CET | Update | https://www.mdpi.com/2077-0383/3/4/1124 |
| article html file updated | 7 May 2019 06:54 CEST | Update | - |
| article html file updated | 22 March 2019 02:54 CET | Update | - |
| article html file updated | 20 August 2015 23:36 CEST | Update | - |
| article html file updated | 25 June 2015 12:08 CEST | Update | - |
| article xml file uploaded | 25 June 2015 12:08 CEST | Update | https://www.mdpi.com/2077-0383/3/4/1124/xml |
| article html file updated | 14 January 2015 05:17 CET | Original file | - |
| article xml file uploaded | 14 January 2015 05:17 CET | Original file | - |
| article pdf uploaded. | 17 October 2014 15:00 CEST | Version of Record | https://www.mdpi.com/2077-0383/3/4/1124/pdf |