| article html file updated | 6 February 2020 00:11 CET | Update | https://www.mdpi.com/1422-0067/14/2/2303 |
| article html file updated | 8 May 2019 09:24 CEST | Update | - |
| article html file updated | 20 March 2019 17:40 CET | Update | - |
| article html file updated | 17 June 2015 05:44 CEST | Update | - |
| article html file updated | 3 December 2013 08:13 CET | Update | - |
| article xml file uploaded | 3 December 2013 08:13 CET | Update | https://www.mdpi.com/1422-0067/14/2/2303/xml |
| article html file updated | 5 March 2013 18:26 CET | Original file | - |
| article xml file uploaded | 5 March 2013 18:22 CET | Original file | - |
| article pdf uploaded. | 24 January 2013 11:54 CET | Version of Record | https://www.mdpi.com/1422-0067/14/2/2303/pdf |
