| article html file updated | 5 February 2020 18:08 CET | Update | https://www.mdpi.com/2079-9268/1/2/303 |
| article html file updated | 8 May 2019 23:05 CEST | Update | N/A |
| article html file updated | 20 March 2019 09:38 CET | Update | N/A |
| article html file updated | 16 June 2015 18:21 CEST | Update | N/A |
| article html file updated | 14 August 2014 12:06 CEST | Update | N/A |
| article xml file uploaded | 14 August 2014 12:06 CEST | Original file | https://www.mdpi.com/2079-9268/1/2/303/xml |
| article html file updated | 6 February 2013 22:39 CET | Update | N/A |
| article html file updated | 6 February 2013 02:25 CET | Update | N/A |
| article html file updated | 28 January 2013 23:46 CET | Update | N/A |
| article html file updated | 26 January 2013 05:03 CET | Update | N/A |
| article html file updated | 22 January 2013 22:14 CET | Original file | N/A |
