| article html file updated | 5 February 2020 21:34 CET | Update | https://www.mdpi.com/2076-328X/2/3/172 |
| article html file updated | 8 May 2019 15:41 CEST | Update | - |
| article html file updated | 25 March 2019 13:35 CET | Update | - |
| article html file updated | 17 June 2015 01:39 CEST | Update | - |
| article html file updated | 26 August 2014 03:57 CEST | Update | - |
| article xml file uploaded | 26 August 2014 03:57 CEST | Original file | https://www.mdpi.com/2076-328X/2/3/172/xml |
| article html file updated | 7 February 2013 14:19 CET | Update | - |
| article html file updated | 7 February 2013 05:23 CET | Update | - |
| article html file updated | 6 February 2013 09:39 CET | Update | - |
| article html file updated | 29 January 2013 05:55 CET | Update | - |
| article html file updated | 27 January 2013 00:38 CET | Update | - |
| article html file updated | 23 January 2013 23:57 CET | Original file | - |
