| article html file updated | 6 February 2020 01:27 CET | Update | https://www.mdpi.com/1422-0067/14/4/7815 |
| article html file updated | 8 May 2019 06:25 CEST | Update | - |
| article html file updated | 20 March 2019 20:50 CET | Update | - |
| article html file updated | 17 June 2015 08:18 CEST | Update | - |
| article html file updated | 21 May 2013 09:30 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:30 CEST | Update | https://www.mdpi.com/1422-0067/14/4/7815/xml |
| article html file updated | 6 May 2013 17:56 CEST | Original file | - |
| article xml file uploaded | 6 May 2013 17:56 CEST | Original file | - |
| article pdf uploaded. | 10 April 2013 11:02 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/4/7815/pdf |
