| article html file updated | 5 February 2020 13:12 CET | Update | https://www.mdpi.com/1424-8247/2/3/287 |
| article html file updated | 9 May 2019 09:07 CEST | Update | N/A |
| article html file updated | 19 March 2019 21:17 CET | Update | N/A |
| article html file updated | 16 June 2015 07:47 CEST | Update | N/A |
| article html file updated | 28 April 2014 10:59 CEST | Update | N/A |
| article xml file uploaded | 28 April 2014 10:59 CEST | Original file | https://www.mdpi.com/1424-8247/2/3/287/xml |
| article html file updated | 6 February 2013 16:15 CET | Update | N/A |
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| article html file updated | 25 January 2013 20:35 CET | Update | N/A |
| article html file updated | 21 January 2013 18:59 CET | Update | N/A |
| article html file updated | 18 January 2013 01:09 CET | Original file | N/A |
