| article html file updated | 7 February 2020 06:33 CET | Update | https://www.mdpi.com/2226-4310/3/2/10 |
| article html file updated | 5 May 2019 20:08 CEST | Update | - |
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| article html file updated | 27 June 2016 12:05 CEST | Update | - |
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| article xml uploaded. | 29 March 2016 13:37 CEST | Update | https://www.mdpi.com/2226-4310/3/2/10/xml |
| article pdf uploaded. | 29 March 2016 13:18 CEST | Version of Record | https://www.mdpi.com/2226-4310/3/2/10/pdf |
