| article html file updated | 6 February 2020 15:47 CET | Update | https://www.mdpi.com/2079-3197/3/1/29 |
| article html file updated | 7 May 2019 01:19 CEST | Update | - |
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| article html file updated | 21 August 2015 07:14 CEST | Update | - |
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| article xml file uploaded | 14 May 2015 03:34 CEST | Original file | https://www.mdpi.com/2079-3197/3/1/29/xml |
| article pdf uploaded. | 5 February 2015 16:34 CET | Version of Record | https://www.mdpi.com/2079-3197/3/1/29/pdf |
