| article html file updated | 5 February 2020 12:01 CET | Update | https://www.mdpi.com/1422-8599/2005/6/M454 |
| article html file updated | 9 May 2019 12:03 CEST | Update | - |
| article html file updated | 19 March 2019 17:53 CET | Update | - |
| article html file updated | 22 September 2017 14:57 CEST | Update | - |
| article xml uploaded. | 22 September 2017 14:56 CEST | Original file | https://www.mdpi.com/1422-8599/2005/6/M454/xml |
| article html file updated | 14 December 2016 10:14 CET | Original file | - |
| Correction published | 29 March 2006 00:00 CEST | Correction | http://www.mdpi.com/1422-8599/2006/2/M475 |
