| article html file updated | 6 February 2020 00:09 CET | Update | https://www.mdpi.com/2072-6643/5/1/302 |
| article html file updated | 8 May 2019 09:27 CEST | Update | - |
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| article html file updated | 5 February 2013 11:31 CET | Original file | - |
| article xml file uploaded | 5 February 2013 11:31 CET | Original file | https://www.mdpi.com/2072-6643/5/1/302/xml |
| article pdf uploaded. | 22 January 2013 14:12 CET | Version of Record | https://www.mdpi.com/2072-6643/5/1/302/pdf |
