| article html file updated | 30 August 2025 02:34 CEST | Update | https://www.mdpi.com/2076-3417/8/2/260 |
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| article pdf uploaded. | 11 February 2018 10:16 CET | Updated version of record | https://www.mdpi.com/2076-3417/8/2/260/pdf |
| article pdf uploaded. | 9 February 2018 17:01 CET | Version of Record | https://www.mdpi.com/2076-3417/8/2/260/pdf-vor |
