| article html file updated | 5 February 2020 23:55 CET | Update | https://www.mdpi.com/2079-6374/3/1/58 |
| article html file updated | 8 May 2019 09:59 CEST | Update | - |
| article html file updated | 20 March 2019 17:02 CET | Update | - |
| article html file updated | 17 June 2015 05:24 CEST | Update | - |
| article html file updated | 26 August 2014 03:59 CEST | Update | - |
| article xml file uploaded | 26 August 2014 03:59 CEST | Original file | https://www.mdpi.com/2079-6374/3/1/58/xml |
| article html file updated | 8 February 2013 09:27 CET | Update | - |
| article html file updated | 7 February 2013 17:46 CET | Update | - |
| article html file updated | 24 January 2013 12:08 CET | Original file | - |
