| article html file updated | 6 February 2020 03:56 CET | Update | https://www.mdpi.com/2071-1050/5/8/3601 |
| article html file updated | 8 May 2019 01:23 CEST | Update | - |
| article html file updated | 21 March 2019 03:25 CET | Update | - |
| article html file updated | 17 June 2015 12:34 CEST | Update | - |
| article html file updated | 14 August 2014 12:06 CEST | Original file | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/2071-1050/5/8/3601/xml |
| article pdf uploaded. | 21 August 2013 18:17 CEST | Version of Record | https://www.mdpi.com/2071-1050/5/8/3601/pdf |
