| article html file updated | 5 February 2020 18:38 CET | Update | https://www.mdpi.com/2076-2615/1/4/396 |
| article html file updated | 8 January 2020 15:05 CET | Update | - |
| article html file updated | 19 September 2019 06:51 CEST | Update | - |
| article html file updated | 8 May 2019 22:00 CEST | Update | - |
| article html file updated | 20 March 2019 10:53 CET | Update | - |
| article html file updated | 29 June 2015 04:16 CEST | Update | - |
| article xml file uploaded | 29 June 2015 04:16 CEST | Original file | https://www.mdpi.com/2076-2615/1/4/396/xml |
| article html file updated | 16 June 2015 20:00 CEST | Update | - |
| article html file updated | 6 February 2013 23:32 CET | Update | - |
| article html file updated | 6 February 2013 03:51 CET | Update | - |
| article html file updated | 29 January 2013 00:36 CET | Update | - |
| article html file updated | 26 January 2013 06:18 CET | Update | - |
| article html file updated | 23 January 2013 02:20 CET | Original file | - |
