| article html file updated | 6 February 2020 00:51 CET | Update | https://www.mdpi.com/2071-1050/5/3/1049 |
| article html file updated | 19 September 2019 18:34 CEST | Update | - |
| article html file updated | 8 May 2019 07:40 CEST | Update | - |
| article html file updated | 20 March 2019 19:25 CET | Update | - |
| article html file updated | 17 June 2015 07:12 CEST | Update | - |
| article html file updated | 25 March 2013 11:02 CET | Original file | - |
| article xml uploaded. | 25 March 2013 11:02 CET | Original file | https://www.mdpi.com/2071-1050/5/3/1049/xml |
| article pdf uploaded. | 12 March 2013 16:33 CET | Updated version of record | https://www.mdpi.com/2071-1050/5/3/1049/pdf |
| article pdf uploaded. | 6 March 2013 13:35 CET | Version of Record | https://www.mdpi.com/2071-1050/5/3/1049/pdf-vor |
