| article html file updated | 21 August 2015 05:18 CEST | Update | https://www.mdpi.com/1424-8220/15/1/880 |
| article html file updated | 13 February 2015 07:12 CET | Original file | N/A |
| article xml file uploaded | 13 February 2015 07:12 CET | Original file | https://www.mdpi.com/1424-8220/15/1/880/xml |
| article pdf uploaded. | 6 January 2015 13:22 CET | Version of Record | https://www.mdpi.com/1424-8220/15/1/880/pdf |
