| article html file updated | 19 August 2026 05:46 CEST | Update | https://www.mdpi.com/2311-5521/6/4/134 |
| article html file updated | 2 September 2025 02:21 CEST | Update | N/A |
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| article html file updated | 3 August 2021 20:49 CEST | Update | N/A |
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| article html file updated | 1 April 2021 03:32 CEST | Original file | N/A |
| article pdf uploaded. | 1 April 2021 03:31 CEST | Version of Record | https://www.mdpi.com/2311-5521/6/4/134/pdf |
| article xml uploaded. | 1 April 2021 03:31 CEST | Update | https://www.mdpi.com/2311-5521/6/4/134/xml |
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