| article html file updated | 5 February 2020 21:39 CET | Update | https://www.mdpi.com/2075-1729/2/3/229 |
| article html file updated | 8 May 2019 15:31 CEST | Update | - |
| article html file updated | 20 March 2019 11:39 CET | Update | - |
| article html file updated | 17 June 2015 01:47 CEST | Update | - |
| article html file updated | 24 July 2014 10:31 CEST | Update | - |
| article xml file uploaded | 24 July 2014 10:30 CEST | Original file | https://www.mdpi.com/2075-1729/2/3/229/xml |
| article html file updated | 7 February 2013 14:29 CET | Update | - |
| article html file updated | 7 February 2013 05:31 CET | Update | - |
| article html file updated | 6 February 2013 09:48 CET | Update | - |
| article html file updated | 29 January 2013 06:04 CET | Update | - |
| article html file updated | 27 January 2013 03:06 CET | Update | - |
| article html file updated | 24 January 2013 00:24 CET | Original file | - |
