| article html file updated | 5 February 2020 17:30 CET | Update | https://www.mdpi.com/2079-6374/1/2/58 |
| article html file updated | 9 May 2019 00:23 CEST | Update | - |
| article html file updated | 20 March 2019 08:03 CET | Update | - |
| article html file updated | 16 June 2015 16:47 CEST | Update | - |
| article html file updated | 21 July 2014 03:32 CEST | Update | - |
| article xml file uploaded | 21 July 2014 03:32 CEST | Update | https://www.mdpi.com/2079-6374/1/2/58/xml |
| article html file updated | 24 June 2014 12:02 CEST | Original file | - |
| article xml file uploaded | 24 June 2014 12:02 CEST | Original file | - |
