| article html file updated | 5 February 2020 20:27 CET | Update | https://www.mdpi.com/2075-4450/3/2/492 |
| article html file updated | 8 May 2019 18:06 CEST | Update | - |
| article html file updated | 25 March 2019 11:15 CET | Update | - |
| article html file updated | 16 June 2015 23:55 CEST | Update | - |
| article html file updated | 27 January 2015 07:03 CET | Update | - |
| article xml file uploaded | 27 January 2015 07:03 CET | Original file | https://www.mdpi.com/2075-4450/3/2/492/xml |
| article html file updated | 7 February 2013 12:20 CET | Update | - |
| article html file updated | 7 February 2013 02:18 CET | Update | - |
| article html file updated | 6 February 2013 07:44 CET | Update | - |
| article html file updated | 29 January 2013 03:33 CET | Update | - |
| article html file updated | 26 January 2013 10:30 CET | Update | - |
| article html file updated | 23 January 2013 17:44 CET | Original file | - |
