| article html file updated | 21 August 2015 06:41 CEST | Update | https://www.mdpi.com/1424-8220/15/2/2980 |
| article html file updated | 19 March 2015 07:45 CET | Original file | N/A |
| article xml file uploaded | 19 March 2015 07:45 CET | Original file | https://www.mdpi.com/1424-8220/15/2/2980/xml |
| article pdf uploaded. | 29 January 2015 09:29 CET | Version of Record | https://www.mdpi.com/1424-8220/15/2/2980/pdf |
