| article html file updated | 6 February 2020 05:34 CET | Update | https://www.mdpi.com/2304-6775/1/3/140 |
| article html file updated | 20 September 2019 03:14 CEST | Update | - |
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| article html file updated | 19 August 2015 09:49 CEST | Update | - |
| article html file updated | 14 November 2014 11:01 CET | Original file | - |
| article xml file uploaded | 14 November 2014 11:01 CET | Original file | https://www.mdpi.com/2304-6775/1/3/140/xml |
| article pdf uploaded. | 15 November 2013 14:35 CET | Version of Record | https://www.mdpi.com/2304-6775/1/3/140/pdf |
