| article html file updated | 28 September 2025 18:50 CEST | Update | https://www.mdpi.com/1422-8599/2009/1/M588 |
| article html file updated | 5 February 2020 11:48 CET | Update | N/A |
| article html file updated | 9 May 2019 12:39 CEST | Update | N/A |
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| article html file updated | 21 September 2017 10:30 CEST | Update | N/A |
| article xml uploaded. | 21 September 2017 10:29 CEST | Original file | https://www.mdpi.com/1422-8599/2009/1/M588/xml |
| article html file updated | 14 December 2016 11:14 CET | Original file | N/A |
