| article html file updated | 6 February 2020 15:01 CET | Update | https://www.mdpi.com/2077-0375/5/1/11 |
| article html file updated | 7 May 2019 02:49 CEST | Update | - |
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| article html file updated | 8 September 2015 06:05 CEST | Update | - |
| article xml file uploaded | 8 September 2015 06:05 CEST | Update | https://www.mdpi.com/2077-0375/5/1/11/xml |
| article html file updated | 21 August 2015 05:25 CEST | Update | - |
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| article pdf uploaded. | 11 March 2015 10:27 CET | Updated version of record | https://www.mdpi.com/2077-0375/5/1/11/pdf |
| article html file updated | 20 January 2015 08:36 CET | Original file | - |
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| article pdf uploaded. | 8 January 2015 12:04 CET | Version of Record | https://www.mdpi.com/2077-0375/5/1/11/pdf-vor |
