| article html file updated | 6 February 2020 00:07 CET | Update | https://www.mdpi.com/1422-0067/14/1/2056 |
| article html file updated | 8 May 2019 09:31 CEST | Update | - |
| article html file updated | 20 March 2019 17:32 CET | Update | - |
| article html file updated | 17 June 2015 05:40 CEST | Update | - |
| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Update | https://www.mdpi.com/1422-0067/14/1/2056/xml |
| article html file updated | 8 February 2013 12:57 CET | Original file | - |
| article xml file uploaded | 8 February 2013 12:56 CET | Original file | - |
| article pdf uploaded. | 21 January 2013 11:15 CET | Version of Record | https://www.mdpi.com/1422-0067/14/1/2056/pdf |