| article html file updated | 6 February 2020 00:02 CET | Update | https://www.mdpi.com/2218-273X/3/1/75 |
| article html file updated | 8 May 2019 09:44 CEST | Update | - |
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| article html file updated | 21 March 2018 08:27 CET | Update | - |
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| article html file updated | 28 April 2014 10:31 CEST | Update | - |
| article xml file uploaded | 28 April 2014 10:31 CEST | Original file | https://www.mdpi.com/2218-273X/3/1/75/xml |
| article html file updated | 8 February 2013 09:32 CET | Update | - |
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| article html file updated | 24 January 2013 12:25 CET | Original file | - |
| article pdf uploaded. | 16 January 2013 16:43 CET | Version of Record | https://www.mdpi.com/2218-273X/3/1/75/pdf |
