| article html file updated | 5 February 2020 23:06 CET | Update | https://new.mdpi.com/1660-4601/9/12/4321 |
| article html file updated | 8 May 2019 11:52 CEST | Update | - |
| article html file updated | 20 March 2019 15:14 CET | Update | - |
| article html file updated | 17 June 2015 04:15 CEST | Update | - |
| article html file updated | 7 February 2013 16:56 CET | Update | - |
| article html file updated | 29 January 2013 15:47 CET | Update | - |
| article xml file uploaded | 29 January 2013 15:47 CET | Original file | https://new.mdpi.com/1660-4601/9/12/4321/xml |
| article html file updated | 24 January 2013 09:20 CET | Original file | - |
