| article html file updated | 6 February 2020 15:01 CET | Update | https://www.mdpi.com/2079-9292/4/1/35 |
| article html file updated | 7 May 2019 02:49 CEST | Update | - |
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| article html file updated | 28 October 2015 11:04 CET | Update | - |
| article xml file uploaded | 28 October 2015 11:04 CET | Original file | https://www.mdpi.com/2079-9292/4/1/35/xml |
| article html file updated | 21 August 2015 05:25 CEST | Original file | - |
| article pdf uploaded. | 8 January 2015 12:01 CET | Version of Record | https://www.mdpi.com/2079-9292/4/1/35/pdf |
