| article html file updated | 5 February 2020 18:54 CET | Update | https://www.mdpi.com/2077-1444/2/4/729 |
| article html file updated | 8 January 2020 15:22 CET | Update | - |
| article html file updated | 19 September 2019 07:25 CEST | Update | - |
| article html file updated | 8 May 2019 21:25 CEST | Update | - |
| article html file updated | 25 March 2019 08:22 CET | Update | - |
| article html file updated | 16 June 2015 20:44 CEST | Update | - |
| article html file updated | 14 August 2014 12:04 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:04 CEST | Original file | https://www.mdpi.com/2077-1444/2/4/729/xml |
| article html file updated | 6 February 2013 23:58 CET | Update | - |
| article html file updated | 6 February 2013 05:11 CET | Update | - |
| article html file updated | 29 January 2013 01:01 CET | Update | - |
| article html file updated | 26 January 2013 07:02 CET | Update | - |
| article html file updated | 23 January 2013 06:05 CET | Original file | - |
