| article html file updated | 14 August 2026 18:01 CEST | Update | https://www.mdpi.com/2414-6366/2/4/51 |
| article html file updated | 8 February 2020 17:48 CET | Update | N/A |
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| article pdf uploaded. | 9 October 2017 04:21 CEST | Updated version of record | https://www.mdpi.com/2414-6366/2/4/51/pdf |
| article pdf uploaded. | 4 October 2017 12:06 CEST | Version of Record | https://www.mdpi.com/2414-6366/2/4/51/pdf-vor |
