| article html file updated | 5 February 2020 19:15 CET | Update | https://www.mdpi.com/1422-0067/13/2/1405 |
| article html file updated | 8 May 2019 20:43 CEST | Update | - |
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| article xml uploaded. | 25 January 2013 15:55 CET | Update | https://www.mdpi.com/1422-0067/13/2/1405/xml |
| article html file updated | 23 January 2013 08:35 CET | Update | - |
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| article html file updated | 16 January 2013 11:44 CET | Original file | - |
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