| article html file updated | 6 February 2020 01:29 CET | Update | https://www.mdpi.com/1422-0067/14/4/8025 |
| article html file updated | 8 May 2019 06:19 CEST | Update | - |
| article html file updated | 20 March 2019 20:57 CET | Update | - |
| article html file updated | 17 June 2015 08:22 CEST | Update | - |
| article html file updated | 21 May 2013 09:31 CEST | Update | - |
| article xml file uploaded | 21 May 2013 09:31 CEST | Update | https://www.mdpi.com/1422-0067/14/4/8025/xml |
| article html file updated | 6 May 2013 18:06 CEST | Original file | - |
| article xml file uploaded | 6 May 2013 18:04 CEST | Original file | - |
| article pdf uploaded. | 12 April 2013 09:37 CEST | Version of Record | https://www.mdpi.com/1422-0067/14/4/8025/pdf |
