| article html file updated | 5 February 2020 22:39 CET | Update | https://www.mdpi.com/2076-3425/2/4/573 |
| article html file updated | 8 May 2019 13:06 CEST | Update | - |
| article html file updated | 20 March 2019 14:13 CET | Update | - |
| article html file updated | 17 June 2015 03:26 CEST | Update | - |
| article html file updated | 20 May 2014 08:32 CEST | Update | - |
| article xml file uploaded | 20 May 2014 08:32 CEST | Original file | https://www.mdpi.com/2076-3425/2/4/573/xml |
| article html file updated | 7 February 2013 16:12 CET | Update | - |
| article html file updated | 24 January 2013 06:38 CET | Original file | - |
