| article html file updated | 5 February 2020 20:22 CET | Update | https://www.mdpi.com/2073-4425/3/2/278 |
| article html file updated | 8 May 2019 18:18 CEST | Update | - |
| article html file updated | 25 March 2019 11:04 CET | Update | - |
| article html file updated | 16 June 2015 23:45 CEST | Update | - |
| article html file updated | 17 February 2014 10:47 CET | Update | - |
| article xml file uploaded | 17 February 2014 10:47 CET | Original file | https://www.mdpi.com/2073-4425/3/2/278/xml |
| article html file updated | 7 February 2013 12:12 CET | Update | - |
| article html file updated | 7 February 2013 02:11 CET | Update | - |
| article html file updated | 6 February 2013 07:36 CET | Update | - |
| article html file updated | 29 January 2013 03:19 CET | Update | - |
| article html file updated | 26 January 2013 10:19 CET | Update | - |
| article html file updated | 23 January 2013 17:15 CET | Original file | - |
