| article html file updated | 30 August 2025 06:46 CEST | Update | https://www.mdpi.com/2076-393X/6/3/61 |
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| article html file updated | 8 September 2018 09:19 CEST | Original file | - |
| article pdf uploaded. | 8 September 2018 09:18 CEST | Version of Record | https://www.mdpi.com/2076-393X/6/3/61/pdf |
| article xml uploaded. | 8 September 2018 09:18 CEST | Update | https://www.mdpi.com/2076-393X/6/3/61/xml |
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