| article html file updated | 6 February 2020 00:17 CET | Update | https://www.mdpi.com/2071-1050/5/2/387 |
| article html file updated | 8 May 2019 09:07 CEST | Update | - |
| article html file updated | 20 March 2019 17:56 CET | Update | - |
| article html file updated | 17 June 2015 05:57 CEST | Update | - |
| article html file updated | 19 February 2013 11:59 CET | Update | - |
| article xml uploaded. | 19 February 2013 11:59 CET | Original file | https://www.mdpi.com/2071-1050/5/2/387/xml |
| article html file updated | 8 February 2013 09:43 CET | Original file | - |
| article pdf uploaded. | 29 January 2013 12:13 CET | Version of Record | https://www.mdpi.com/2071-1050/5/2/387/pdf |
