| article html file updated | 5 February 2020 23:54 CET | Update | https://new.mdpi.com/1422-0067/14/1/1428 |
| article html file updated | 8 May 2019 10:01 CEST | Update | - |
| article html file updated | 20 March 2019 17:00 CET | Update | - |
| article html file updated | 17 June 2015 05:23 CEST | Update | - |
| article html file updated | 14 August 2014 12:05 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:05 CEST | Update | https://new.mdpi.com/1422-0067/14/1/1428/xml |
| article html file updated | 8 February 2013 12:36 CET | Original file | - |
| article xml file uploaded | 8 February 2013 12:35 CET | Original file | - |
