| article html file updated | 14 August 2026 22:23 CEST | Update | https://www.mdpi.com/2226-4310/5/1/20 |
| article html file updated | 9 February 2020 07:01 CET | Update | N/A |
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| article xml uploaded. | 23 February 2018 11:22 CET | Original file | https://www.mdpi.com/2226-4310/5/1/20/xml |
| article pdf uploaded. | 23 February 2018 11:22 CET | Updated version of record | https://www.mdpi.com/2226-4310/5/1/20/pdf |
| article pdf uploaded. | 18 February 2018 11:01 CET | Version of Record | https://www.mdpi.com/2226-4310/5/1/20/pdf-vor |
