| article html file updated | 7 February 2020 00:53 CET | Update | https://www.mdpi.com/2077-1444/6/4/1330 |
| article html file updated | 9 January 2020 14:32 CET | Original file | - |
| article pdf uploaded. | 12 November 2015 14:56 CET | Version of Record | https://www.mdpi.com/2077-1444/6/4/1330/pdf |
| article xml uploaded. | 12 November 2015 14:56 CET | Original file | https://www.mdpi.com/2077-1444/6/4/1330/xml |
