| article html file updated | 6 February 2020 04:56 CET | Update | https://www.mdpi.com/2077-0383/2/4/188 |
| article html file updated | 7 May 2019 23:14 CEST | Update | - |
| article html file updated | 21 March 2019 06:04 CET | 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/2077-0383/2/4/188/xml |
| article html file updated | 17 June 2015 13:57 CEST | Update | - |
| article html file updated | 16 December 2014 04:50 CET | Update | - |
| article xml file uploaded | 16 December 2014 04:50 CET | Update | - |
| 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. | 16 October 2013 16:57 CEST | Version of Record | https://www.mdpi.com/2077-0383/2/4/188/pdf |
