| article html file updated | 19 August 2015 18:57 CEST | Update | https://www.mdpi.com/2220-9964/3/1/49 |
| article html file updated | 4 May 2015 05:33 CEST | Original file | N/A |
| article xml file uploaded | 4 May 2015 05:33 CEST | Original file | https://www.mdpi.com/2220-9964/3/1/49/xml |
| article pdf uploaded. | 13 February 2014 14:28 CET | Updated version of record | https://www.mdpi.com/2220-9964/3/1/49/pdf |
| article pdf uploaded. | 7 February 2014 14:51 CET | Updated version of record | https://www.mdpi.com/2220-9964/3/1/49/pdf-vor |
| article pdf uploaded. | 27 January 2014 14:51 CET | Version of Record | https://www.mdpi.com/2220-9964/3/1/49/pdf-vor |
