| article html file updated | 6 February 2020 01:39 CET | Update | https://www.mdpi.com/1422-0067/14/4/8638 |
| article html file updated | 8 May 2019 06:00 CEST | Update | - |
| article html file updated | 20 March 2019 21:22 CET | Update | - |
| article html file updated | 17 June 2015 08:38 CEST | Update | - |
| article html file updated | 21 May 2013 09:34 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:34 CEST | Update | https://www.mdpi.com/1422-0067/14/4/8638/xml |
| article html file updated | 6 May 2013 18:36 CEST | Original file | - |
| article xml file uploaded | 6 May 2013 18:34 CEST | Original file | - |
| article pdf uploaded. | 22 April 2013 12:15 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/4/8638/pdf |
