| article html file updated | 29 August 2025 20:26 CEST | Update | https://www.mdpi.com/1424-8247/5/9/899 |
| article html file updated | 15 July 2022 21:56 CEST | Update | - |
| article html file updated | 5 February 2020 21:47 CET | Update | - |
| article html file updated | 8 May 2019 15:13 CEST | Update | - |
| article html file updated | 20 March 2019 12:00 CET | Update | - |
| article html file updated | 17 June 2015 02:00 CEST | Update | - |
| article html file updated | 13 September 2013 17:16 CEST | Update | - |
| article xml file uploaded | 13 September 2013 17:15 CEST | Original file | https://www.mdpi.com/1424-8247/5/9/899/xml |
| article html file updated | 7 February 2013 14:44 CET | Update | - |
| article html file updated | 7 February 2013 05:46 CET | Update | - |
| article html file updated | 6 February 2013 10:03 CET | Update | - |
| article html file updated | 29 January 2013 06:19 CET | Update | - |
| article html file updated | 24 January 2013 01:07 CET | Original file | - |
