| article html file updated | 5 February 2020 18:13 CET | Update | https://www.mdpi.com/1422-8599/2011/3/M738 |
| article html file updated | 8 May 2019 22:54 CEST | Update | - |
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| article html file updated | 25 September 2017 05:30 CEST | Update | - |
| article xml uploaded. | 25 September 2017 05:29 CEST | Update | https://www.mdpi.com/1422-8599/2011/3/M738/xml |
| article html file updated | 5 June 2017 05:33 CEST | Update | - |
| article html file updated | 5 June 2017 05:33 CEST | Update | - |
| article html file updated | 14 December 2016 11:58 CET | Original file | - |
