| article html file updated | 7 February 2020 12:43 CET | Update | https://www.mdpi.com/2076-3905/5/3/20 |
| article html file updated | 5 May 2019 08:14 CEST | Update | - |
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| article html file updated | 29 September 2016 12:16 CEST | Update | - |
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| article xml uploaded. | 2 August 2016 13:28 CEST | Update | https://www.mdpi.com/2076-3905/5/3/20/xml |
| article pdf uploaded. | 2 August 2016 13:28 CEST | Version of Record | https://www.mdpi.com/2076-3905/5/3/20/pdf |
