| article html file updated | 6 February 2020 03:09 CET | Update | https://www.mdpi.com/2218-273X/3/3/369 |
| article html file updated | 8 May 2019 02:59 CEST | Update | N/A |
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| article xml file uploaded | 28 April 2014 10:33 CEST | Original file | https://www.mdpi.com/2218-273X/3/3/369/xml |
| article pdf uploaded. | 11 July 2013 16:45 CEST | Version of Record | https://www.mdpi.com/2218-273X/3/3/369/pdf |