| article html file updated | 5 February 2020 18:11 CET | Update | https://www.mdpi.com/2079-9268/1/2/327 |
| article html file updated | 8 May 2019 22:59 CEST | Update | - |
| article html file updated | 20 March 2019 09:46 CET | Update | - |
| article html file updated | 16 June 2015 18:31 CEST | Update | - |
| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/2079-9268/1/2/327/xml |
| article html file updated | 6 February 2013 22:44 CET | Update | - |
| article html file updated | 6 February 2013 02:30 CET | Update | - |
| article html file updated | 28 January 2013 23:51 CET | Update | - |
| article html file updated | 26 January 2013 05:10 CET | Update | - |
| article html file updated | 22 January 2013 22:37 CET | Original file | - |
