| article html file updated | 8 February 2020 14:02 CET | Update | https://www.mdpi.com/2414-6366/2/3/40 |
| article html file updated | 26 September 2019 15:49 CEST | Update | - |
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| article html file updated | 23 August 2017 04:03 CEST | Update | - |
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| article pdf uploaded. | 23 August 2017 04:01 CEST | Updated version of record | https://www.mdpi.com/2414-6366/2/3/40/pdf |
| article html file updated | 21 August 2017 06:22 CEST | Original file | - |
| article xml uploaded. | 21 August 2017 06:21 CEST | Update | - |
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| article pdf uploaded. | 21 August 2017 06:21 CEST | Version of Record | https://www.mdpi.com/2414-6366/2/3/40/pdf-vor |