| article html file updated | 5 February 2020 16:07 CET | Update | https://www.mdpi.com/2072-6694/2/4/2098 |
| article html file updated | 19 September 2019 02:17 CEST | Update | - |
| article html file updated | 9 May 2019 03:08 CEST | Update | - |
| article html file updated | 20 March 2019 04:34 CET | Update | - |
| article html file updated | 16 June 2015 13:01 CEST | Update | - |
| article html file updated | 22 November 2013 11:33 CET | Original file | - |
| article xml file uploaded | 22 November 2013 11:33 CET | Original file | https://www.mdpi.com/2072-6694/2/4/2098/xml |
