| article html file updated | 5 February 2020 10:37 CET | Update | https://www.mdpi.com/1660-4601/4/1/23 |
| article html file updated | 9 May 2019 14:48 CEST | Update | - |
| article html file updated | 19 March 2019 15:07 CET | Update | - |
| article html file updated | 14 August 2014 11:41 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:41 CEST | Update | https://www.mdpi.com/1660-4601/4/1/23/xml |
| article html file updated | 14 August 2014 11:21 CEST | Update | - |
| article xml file uploaded | 14 August 2014 11:21 CEST | Update | - |
| article html file updated | 23 July 2013 17:50 CEST | Original file | - |
| article xml file uploaded | 23 July 2013 17:50 CEST | Original file | - |
