| article html file updated | 5 February 2020 19:43 CET | Update | https://www.mdpi.com/2079-6374/2/1/83 |
| article html file updated | 8 May 2019 19:44 CEST | Update | - |
| article html file updated | 25 March 2019 09:53 CET | Update | - |
| article html file updated | 16 June 2015 22:20 CEST | Update | - |
| article html file updated | 21 July 2014 03:34 CEST | Update | - |
| article xml file uploaded | 21 July 2014 03:34 CEST | Update | https://www.mdpi.com/2079-6374/2/1/83/xml |
| article html file updated | 27 June 2014 08:04 CEST | Original file | - |
| article xml file uploaded | 27 June 2014 08:04 CEST | Original file | - |
