| article html file updated | 5 February 2020 09:32 CET | Update | https://www.mdpi.com/1422-0067/8/5/407 |
| article html file updated | 9 May 2019 17:03 CEST | Update | N/A |
| article html file updated | 19 March 2019 12:33 CET | Update | N/A |
| article html file updated | 26 June 2013 16:02 CEST | Original file | N/A |
| article xml file uploaded | 26 June 2013 16:02 CEST | Original file | https://www.mdpi.com/1422-0067/8/5/407/xml |
| Correction published | 24 February 2009 00:00 CET | Correction | http://www.mdpi.com/1422-0067/10/2/723 |
