| article html file updated | 21 August 2015 05:43 CEST | Update | https://www.mdpi.com/2220-9964/4/1/87 |
| article html file updated | 4 May 2015 05:33 CEST | Original file | - |
| article xml file uploaded | 4 May 2015 05:33 CEST | Original file | https://www.mdpi.com/2220-9964/4/1/87/xml |
| article pdf uploaded. | 13 January 2015 15:41 CET | Version of Record | https://www.mdpi.com/2220-9964/4/1/87/pdf |
