| article html file updated | 6 February 2020 09:07 CET | Update | https://www.mdpi.com/2077-0383/3/2/480 |
| article html file updated | 7 May 2019 14:48 CEST | Update | - |
| article html file updated | 21 March 2019 16:46 CET | Update | - |
| article html file updated | 20 August 2015 06:15 CEST | Update | - |
| article html file updated | 16 December 2014 04:50 CET | Update | - |
| article xml file uploaded | 16 December 2014 04:50 CET | Update | https://www.mdpi.com/2077-0383/3/2/480/xml |
| article html file updated | 10 December 2014 09:53 CET | Original file | - |
| article xml file uploaded | 10 December 2014 09:53 CET | Original file | - |
| article pdf uploaded. | 8 May 2014 14:29 CEST | Version of Record | https://www.mdpi.com/2077-0383/3/2/480/pdf |
