| article html file updated | 5 February 2020 11:49 CET | Update | https://www.mdpi.com/1422-8599/2008/3/M567 |
| article html file updated | 18 September 2019 17:04 CEST | Update | - |
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| article xml uploaded. | 22 September 2017 14:36 CEST | Update | https://www.mdpi.com/1422-8599/2008/3/M567/xml |
| article html file updated | 5 June 2017 05:29 CEST | Update | - |
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| article html file updated | 14 December 2016 11:13 CET | Original file | - |
