| article html file updated | 5 February 2020 12:01 CET | Update | https://www.mdpi.com/1422-0067/10/4/1445 |
| article html file updated | 9 May 2019 12:02 CEST | Update | N/A |
| article html file updated | 19 March 2019 17:54 CET | Update | N/A |
| article html file updated | 16 June 2015 05:56 CEST | Update | N/A |
| article html file updated | 6 February 2013 14:51 CET | Update | N/A |
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| article html file updated | 28 January 2013 16:39 CET | Update | N/A |
| article html file updated | 25 January 2013 18:32 CET | Update | N/A |
| article html file updated | 21 January 2013 12:56 CET | Update | N/A |
| article html file updated | 18 January 2013 22:02 CET | Update | N/A |
| article html file updated | 17 January 2013 20:21 CET | Original file | N/A |
